{"name":"ADI Leak Detection case studies as semantic triples","publisher":"ADI Leak Detection","explained_at":"https://leakdetectionbirmingham.com/case-studies.md","data_as_of":"2026-09-14","count":221,"case_studies":[
{"id":335,"title":"underground water mains leak in Marlborough (SN8 3)","summary":"ADI Leak Detection engineer Artur Sowa investigated an underground water mains leak in Marlborough, Wiltshire (SN8 3), using acoustic correlation, pressure testing and visual inspection. Leak location: between the second meter and the valve inside the gas box. Work done: outlet fitting replaced, new tee junction installed and new elbows fitted. Outcome: hole backfilled with a safety cover left in place.","triples":[["ADI case study 335","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 335","town","Marlborough"],["ADI case study 335","postcode sector","SN8 3"],["ADI case study 335","county","Wiltshire"],["ADI case study 335","country","England"],["ADI case study 335","leak type","Underground water mains leak"],["ADI case study 335","service","Water Mains Leak Detection"],["ADI case study 335","service","Underground Leak Detection"],["ADI case study 335","engineer","Artur Sowa"],["ADI case study 335","detection method","Acoustic Correlation"],["ADI case study 335","detection method","Pressure Testing"],["ADI case study 335","detection method","Visual Inspection"],["ADI case study 335","symptom","flooded basement"],["ADI case study 335","test result","pressure test and acoustic device confirmed a leak"],["ADI case study 335","leak location","between the second meter and the valve inside the gas box"],["ADI case study 335","leak location","outlet fitting from the meter box"],["ADI case study 335","leak cause","broken outlet fitting"],["ADI case study 335","access made","hole excavated"],["ADI case study 335","repair","outlet fitting replaced, new tee junction installed and new elbows fitted"],["ADI case study 335","repair","Philmac 25mm tee and joiner, Plasson 25mm elbow, MDPE 25mm pipe, Floplast 25mm male adaptor"],["ADI case study 335","outcome","hole backfilled with a safety cover left in place"]]},
{"id":334,"title":"underground water mains leak in Aylesbury (HP14 3)","summary":"ADI Leak Detection engineer Artur Sowa investigated an underground water mains leak in Aylesbury, Buckinghamshire (HP14 3), using acoustic correlation, tracer gas and visual inspection. Leak location: 20mm metal pipe beneath the block paving. Work done: leak repaired with 20mm MDPE pipe and two 25mm to 20mm fittings. Outcome: pipework re-tested after the repair to confirm no further gas escapes.","triples":[["ADI case study 334","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 334","town","Aylesbury"],["ADI case study 334","postcode sector","HP14 3"],["ADI case study 334","county","Buckinghamshire"],["ADI case study 334","country","England"],["ADI case study 334","leak type","Underground water mains leak"],["ADI case study 334","service","Water Mains Leak Detection"],["ADI case study 334","service","Underground Leak Detection"],["ADI case study 334","engineer","Artur Sowa"],["ADI case study 334","detection method","Acoustic Correlation"],["ADI case study 334","detection method","Tracer Gas"],["ADI case study 334","detection method","Visual Inspection"],["ADI case study 334","symptom","no visible signs of dampness or structural damage"],["ADI case study 334","pipe material","20mm metal"],["ADI case study 334","test result","strong acoustic reading in the middle of the driveway"],["ADI case study 334","test result","tracer gas escape in the area identified by the acoustic equipment"],["ADI case study 334","leak location","20mm metal pipe beneath the block paving"],["ADI case study 334","access made","block paving removed and underlying area excavated"],["ADI case study 334","repair","leak repaired with 20mm MDPE pipe and two 25mm to 20mm fittings"],["ADI case study 334","outcome","pipework re-tested after the repair to confirm no further gas escapes"],["ADI case study 334","outcome","excavation backfilled and block paving reinstated"]]},
{"id":333,"title":"underground water mains leak in Derby (DE23 4)","summary":"ADI Leak Detection engineer Phillip Whitehouse investigated an underground water mains leak in Derby, Derbyshire (DE23 4), using acoustic correlation, tracer gas, pressure testing and flow metering. Leak location: transfer couplers at the front of the property. Work done: transfer couplers replaced and new pipe section of original mains size installed. Outcome: retest at 3.3 bar dropped 0.01 bar over 8 minutes.","triples":[["ADI case study 333","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 333","town","Derby"],["ADI case study 333","postcode sector","DE23 4"],["ADI case study 333","county","Derbyshire"],["ADI case study 333","country","England"],["ADI case study 333","leak type","Underground water mains leak"],["ADI case study 333","service","Water Mains Leak Detection"],["ADI case study 333","service","Underground Leak Detection"],["ADI case study 333","engineer","Phillip Whitehouse"],["ADI case study 333","detection method","Acoustic Correlation"],["ADI case study 333","detection method","Tracer Gas"],["ADI case study 333","detection method","Pressure Testing"],["ADI case study 333","detection method","Flow Metering"],["ADI case study 333","property type","semi-detached bungalow"],["ADI case study 333","symptom","unusually high water usage"],["ADI case study 333","test result","meter test confirmed a leak on the incoming mains supply"],["ADI case study 333","test result","incoming mains pipework unable to hold pressure"],["ADI case study 333","test result","tracer gas and acoustic results pointed to the front of the property"],["ADI case study 333","leak location","transfer couplers at the front of the property"],["ADI case study 333","leak cause","faulty transfer couplers"],["ADI case study 333","repair","transfer couplers replaced and new pipe section of original mains size installed"],["ADI case study 333","outcome","retest at 3.3 bar dropped 0.01 bar over 8 minutes"],["ADI case study 333","outcome","minor loss determined not to come from the newly repaired section"],["ADI case study 333","recommendation","contact the local water authority about the integrity of the main supply pipe"]]},
{"id":332,"title":"central heating leak in Chetwynd (TF10 8)","summary":"ADI Leak Detection engineer Phillip Whitehouse investigated a central heating leak in Chetwynd, Shropshire (TF10 8), using pressure testing, tracer gas and acoustic correlation. Work done: leaking section cut out and repaired with a compression isolation valve and a coupler. Outcome: pressure stable at 2.0 bar for one hour after the repair.","triples":[["ADI case study 332","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 332","town","Chetwynd"],["ADI case study 332","postcode sector","TF10 8"],["ADI case study 332","county","Shropshire"],["ADI case study 332","country","England"],["ADI case study 332","leak type","Central heating leak"],["ADI case study 332","service","Central Heating Leak Detection"],["ADI case study 332","service","Heating Leak Detection"],["ADI case study 332","engineer","Phillip Whitehouse"],["ADI case study 332","detection method","Pressure Testing"],["ADI case study 332","detection method","Tracer Gas"],["ADI case study 332","detection method","Acoustic Correlation"],["ADI case study 332","property type","detached house"],["ADI case study 332","symptom","loss of pressure in the heating system"],["ADI case study 332","system affected","gravity-fed heating system with a system boiler"],["ADI case study 332","test result","pressure drop of 0.1 bar every 30 minutes when tested to 1.5 bar"],["ADI case study 332","test result","strong tracer gas indications in the hallway leading to the dining room"],["ADI case study 332","test result","acoustic testing results not entirely conclusive"],["ADI case study 332","repair","leaking section cut out and repaired with a compression isolation valve and a coupler"],["ADI case study 332","outcome","pressure stable at 2.0 bar for one hour after the repair"],["ADI case study 332","recommendation","consider replacing radiator vent plugs, as some radiators were difficult to vent"]]},
{"id":331,"title":"underground water mains leak in Telford (TF3 1)","summary":"ADI Leak Detection engineer Phillip Whitehouse investigated an underground water mains leak in Telford, Shropshire (TF3 1), using pressure testing, tracer gas, acoustic correlation and visual inspection. Leak location: front of the house. Work done: burst section cut out and joined with 2 couplings and new MDPE pipe.","triples":[["ADI case study 331","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 331","town","Telford"],["ADI case study 331","postcode sector","TF3 1"],["ADI case study 331","county","Shropshire"],["ADI case study 331","country","England"],["ADI case study 331","leak type","Underground water mains leak"],["ADI case study 331","service","Water Mains Leak Detection"],["ADI case study 331","service","Underground Leak Detection"],["ADI case study 331","engineer","Phillip Whitehouse"],["ADI case study 331","detection method","Pressure Testing"],["ADI case study 331","detection method","Tracer Gas"],["ADI case study 331","detection method","Acoustic Correlation"],["ADI case study 331","detection method","Visual Inspection"],["ADI case study 331","property type","semi-detached house"],["ADI case study 331","symptom","losing a lot of water from the water mains"],["ADI case study 331","test result","meter check with internal stop tap off confirmed a large leak on the incoming mains"],["ADI case study 331","test result","mains pipe tested to 3 bar lost pressure rapidly"],["ADI case study 331","test result","tracer gas results at the front of the house, area confirmed by acoustic testing"],["ADI case study 331","leak location","front of the house"],["ADI case study 331","leak cause","burst pipe"],["ADI case study 331","access made","hole dug and opened up more as the mains ran under a drainage pipe"],["ADI case study 331","repair","burst section cut out and joined with 2 couplings and new MDPE pipe"],["ADI case study 331","recommendation","have a new mains installed if any more problems arise"]]},
{"id":330,"title":"central heating leak in Camberwell (SE22 9)","summary":"ADI Leak Detection engineer Aaron Baker investigated a central heating leak in Camberwell, Greater London (SE22 9), using thermal imaging, tracer gas, a damp meter, an endoscope camera and pressure testing. Leak location: 15mm fitting at the original excavation site. Work done: leaking 15mm fitting drained and repaired. Outcome: no additional leaks after the repair and re-test.","triples":[["ADI case study 330","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 330","town","Camberwell"],["ADI case study 330","postcode sector","SE22 9"],["ADI case study 330","county","Greater London"],["ADI case study 330","country","England"],["ADI case study 330","leak type","Central heating leak"],["ADI case study 330","service","Central Heating Leak Detection"],["ADI case study 330","service","Heating Leak Detection"],["ADI case study 330","engineer","Aaron Baker"],["ADI case study 330","detection method","Thermal Imaging"],["ADI case study 330","detection method","Tracer Gas"],["ADI case study 330","detection method","Damp Meter"],["ADI case study 330","detection method","Endoscope Camera"],["ADI case study 330","detection method","Pressure Testing"],["ADI case study 330","property type","two-storey terraced residence"],["ADI case study 330","symptom","gradual heating pressure loss of approximately 1 bar every 12 hours"],["ADI case study 330","symptom","visible water damage in the bathroom and adjacent walls"],["ADI case study 330","symptom","area of uplifted tiles near the damage"],["ADI case study 330","test result","elevated moisture in the previously excavated area and surrounding walls and floor"],["ADI case study 330","test result","thermal imaging showed no anomalies on the heating pipework"],["ADI case study 330","test result","pressure loss of approximately 0.1 bar and tracer gas around the original excavation site"],["ADI case study 330","leak location","15mm fitting at the original excavation site"],["ADI case study 330","access made","area around the original excavation site excavated"],["ADI case study 330","repair","leaking 15mm fitting drained and repaired"],["ADI case study 330","repair","15mm copper pipe and 2 x 15mm soldered straight couplers used"],["ADI case study 330","outcome","no additional leaks after the repair and re-test"],["ADI case study 330","outcome","boiler re-pressurised and tested for heating and hot water"],["ADI case study 330","recommendation","thoroughly dry out the affected area"],["ADI case study 330","recommendation","re-tile the excavated area once dry to restore the bathroom floor"]]},
{"id":329,"title":"towel radiator leak in Whitstable (CT5 3)","summary":"ADI Leak Detection engineer Aaron Baker investigated a towel radiator leak in Whitstable, Kent (CT5 3), using thermal imaging, an endoscope camera, a damp meter and pressure testing. Leak location: towel radiator valve in the bathroom directly above the damaged ceiling. Work done: radiator valve tightened, no materials used. Outcome: no further issues found with the pipework heated after the repair.","triples":[["ADI case study 329","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 329","town","Whitstable"],["ADI case study 329","postcode sector","CT5 3"],["ADI case study 329","county","Kent"],["ADI case study 329","country","England"],["ADI case study 329","leak type","Towel radiator leak"],["ADI case study 329","service","Hot Water Leak Detection"],["ADI case study 329","service","Internal Leak Detection"],["ADI case study 329","engineer","Aaron Baker"],["ADI case study 329","detection method","Thermal Imaging"],["ADI case study 329","detection method","Endoscope Camera"],["ADI case study 329","detection method","Damp Meter"],["ADI case study 329","detection method","Pressure Testing"],["ADI case study 329","property type","large detached building over two floors"],["ADI case study 329","symptom","crack and hole in the affected ceiling with no active water ingress"],["ADI case study 329","symptom","boiler pressure at 0 bar"],["ADI case study 329","symptom","puddle beneath the towel radiator in the bathroom above the affected area"],["ADI case study 329","test result","leak from the valve matched a noticeable drop in system pressure after repressurising"],["ADI case study 329","test result","endoscope and thermal camera found no further pipe leaks causing damage"],["ADI case study 329","leak location","towel radiator valve in the bathroom directly above the damaged ceiling"],["ADI case study 329","repair","radiator valve tightened, no materials used"],["ADI case study 329","outcome","no further issues found with the pipework heated after the repair"],["ADI case study 329","recommendation","thoroughly dry out the affected areas"],["ADI case study 329","recommendation","arrange full reinstatement of the damaged areas once dry"]]},
{"id":328,"title":"internal cold mains leak in Gravesend (TN15 6)","summary":"ADI Leak Detection engineer Aaron Baker investigated an internal cold mains leak in Gravesend, Kent (TN15 6), using tracer gas, a damp meter, an endoscope camera, acoustic listening and pressure testing. Leak location: 15mm copper fitting in the corner between the sink unit and the wall. Work done: 2 soldered straight couplings and a press fit elbow used on the copper pipework. Outcome: no further issues identified on re-test.","triples":[["ADI case study 328","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 328","town","Gravesend"],["ADI case study 328","postcode sector","TN15 6"],["ADI case study 328","county","Kent"],["ADI case study 328","country","England"],["ADI case study 328","leak type","Internal cold mains leak"],["ADI case study 328","service","Water Mains Leak Detection"],["ADI case study 328","service","Internal Leak Detection"],["ADI case study 328","engineer","Aaron Baker"],["ADI case study 328","detection method","Tracer Gas"],["ADI case study 328","detection method","Damp Meter"],["ADI case study 328","detection method","Endoscope Camera"],["ADI case study 328","detection method","Acoustic Listening"],["ADI case study 328","detection method","Pressure Testing"],["ADI case study 328","property type","detached bungalow"],["ADI case study 328","symptom","water meter constantly spinning"],["ADI case study 328","symptom","some moisture on the external wall by the walkway to the converted garage"],["ADI case study 328","symptom","a lot of moisture and sound of running water under the converted garage plinth"],["ADI case study 328","pipe material","copper"],["ADI case study 328","test result","noise and meter movement stopped when the internal stopcock was turned off"],["ADI case study 328","test result","elevated moisture readings on the converted garage floor"],["ADI case study 328","test result","endoscope showed water spraying in the corner between the sink unit and the wall"],["ADI case study 328","leak location","15mm copper fitting in the corner between the sink unit and the wall"],["ADI case study 328","access made","sink unit and washing machine removed"],["ADI case study 328","access made","wall excavated"],["ADI case study 328","repair","2 soldered straight couplings and a press fit elbow used on the copper pipework"],["ADI case study 328","outcome","no further issues identified on re-test"],["ADI case study 328","outcome","sink unit and washing machine reinstated"],["ADI case study 328","recommendation","dry out the converted garage area with a dehumidifier"]]},
{"id":327,"title":"central heating leak in Folkestone (CT20 2)","summary":"ADI Leak Detection engineer Aaron Baker investigated a central heating leak in Folkestone, Kent (CT20 2), using thermal imaging, tracer gas, a damp meter and an endoscope camera. Leak location: disused pipework at a low level behind the units. Work done: leaking section of pipe capped off with 2x 10mm caps and inserts. Outcome: re-test of the system confirmed no further issues.","triples":[["ADI case study 327","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 327","town","Folkestone"],["ADI case study 327","postcode sector","CT20 2"],["ADI case study 327","county","Kent"],["ADI case study 327","country","England"],["ADI case study 327","leak type","Central heating leak"],["ADI case study 327","service","Central Heating Leak Detection"],["ADI case study 327","service","Heating Leak Detection"],["ADI case study 327","engineer","Aaron Baker"],["ADI case study 327","detection method","Thermal Imaging"],["ADI case study 327","detection method","Tracer Gas"],["ADI case study 327","detection method","Damp Meter"],["ADI case study 327","detection method","Endoscope Camera"],["ADI case study 327","property type","semi-detached block of apartments"],["ADI case study 327","symptom","visible damage to the ceiling and wall of the apartment below"],["ADI case study 327","symptom","very low boiler pressure in the apartment above"],["ADI case study 327","system affected","old, disused pipework behind the wall"],["ADI case study 327","test result","elevated moisture readings in the apartment below, with damage tracking down to the floor"],["ADI case study 327","test result","thermal imaging showed no anomalies on the heating pipework"],["ADI case study 327","test result","consistent pressure drop and tracer gas detected near the television unit"],["ADI case study 327","leak location","disused pipework at a low level behind the units"],["ADI case study 327","access made","access gained into the ceiling"],["ADI case study 327","repair","leaking section of pipe capped off with 2x 10mm caps and inserts"],["ADI case study 327","outcome","re-test of the system confirmed no further issues"],["ADI case study 327","outcome","system refilled and boiler recommissioned"],["ADI case study 327","recommendation","repair the plasterboard ceiling opened for access"],["ADI case study 327","recommendation","proceed with drying and reinstatement works in the apartment below"]]},
{"id":326,"title":"internal cold mains leak in Herne Bay (CT6 8)","summary":"ADI Leak Detection engineer Aaron Baker investigated an internal cold mains leak in Herne Bay, Kent (CT6 8), using an endoscope camera, tracer gas, a damp meter and pressure testing. Leak location: push-fit fitting beneath the tiled bathroom floor. Work done: affected section of pipe repaired. Outcome: no further pressure drops and no tracer gas detected across the property.","triples":[["ADI case study 326","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 326","town","Herne Bay"],["ADI case study 326","postcode sector","CT6 8"],["ADI case study 326","county","Kent"],["ADI case study 326","country","England"],["ADI case study 326","leak type","Internal cold mains leak"],["ADI case study 326","service","Water Mains Leak Detection"],["ADI case study 326","service","Internal Leak Detection"],["ADI case study 326","engineer","Aaron Baker"],["ADI case study 326","detection method","Endoscope Camera"],["ADI case study 326","detection method","Tracer Gas"],["ADI case study 326","detection method","Damp Meter"],["ADI case study 326","detection method","Pressure Testing"],["ADI case study 326","property type","detached bungalow"],["ADI case study 326","symptom","no visible signs of damage in the property"],["ADI case study 326","pipe material","3/4 inch copper"],["ADI case study 326","test result","water meter registered consumption once the supply was restored"],["ADI case study 326","leak location","push-fit fitting beneath the tiled bathroom floor"],["ADI case study 326","leak cause","pipework was 3/4 inch copper, not 22mm, so the fitting failed"],["ADI case study 326","access made","tiled bathroom floor excavated"],["ADI case study 326","repair","affected section of pipe repaired"],["ADI case study 326","repair","22mm x 3/4 compression straight fitting and 22mm x 15mm push-fit straight coupler used"],["ADI case study 326","outcome","no further pressure drops and no tracer gas detected across the property"],["ADI case study 326","outcome","vanity unit and basin refitted and retested with no issues"],["ADI case study 326","recommendation","have the floor tiles re-grouted now the tiles are re-laid"]]},
{"id":325,"title":"underground mains leak in Biggin Hill (TN16 3)","summary":"ADI Leak Detection engineer Aaron Baker investigated an underground mains leak in Biggin Hill, Greater London (TN16 3), using tracer gas, a damp meter, an endoscope camera, pressure testing and visual inspection. Leak location: external stop cock situated in the garage. Work done: leaking stop cock cut out and repaired with a universal transition coupling and 25mm fitting. Outcome: meter still moving after the repair, though a lot slower than before.","triples":[["ADI case study 325","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 325","town","Biggin Hill"],["ADI case study 325","postcode sector","TN16 3"],["ADI case study 325","county","Greater London"],["ADI case study 325","country","England"],["ADI case study 325","leak type","Underground mains leak"],["ADI case study 325","service","Water Mains Leak Detection"],["ADI case study 325","service","Underground Leak Detection"],["ADI case study 325","engineer","Aaron Baker"],["ADI case study 325","detection method","Tracer Gas"],["ADI case study 325","detection method","Damp Meter"],["ADI case study 325","detection method","Endoscope Camera"],["ADI case study 325","detection method","Pressure Testing"],["ADI case study 325","detection method","Visual Inspection"],["ADI case study 325","property type","terraced building over 3 floors"],["ADI case study 325","symptom","issue with the water bill, told they are using a lot more water"],["ADI case study 325","symptom","water meter spinning"],["ADI case study 325","symptom","no internal water damage and no high damp meter readings"],["ADI case study 325","system affected","supply pipework from the internal stop cock back to the meter"],["ADI case study 325","test result","meter still ticking over with the internal stop cock turned off"],["ADI case study 325","test result","pressure kept dropping and tracer gas detected in the garage near a stop cock chamber"],["ADI case study 325","test result","tracer gas coming from the water meter chamber in the footpath"],["ADI case study 325","leak location","external stop cock situated in the garage"],["ADI case study 325","access made","garage concrete and the area below excavated"],["ADI case study 325","access made","block paving excavated and area checked with the endoscope"],["ADI case study 325","repair","leaking stop cock cut out and repaired with a universal transition coupling and 25mm fitting"],["ADI case study 325","outcome","meter still moving after the repair, though a lot slower than before"],["ADI case study 325","recommendation","replace the water meter, as its stopcock is extremely difficult to isolate"],["ADI case study 325","recommendation","reinstate the garage excavation now the repair is complete"]]},
{"id":324,"title":"rainwater drainage leak in Otford (TN13 3)","summary":"ADI Leak Detection engineer Aaron Baker investigated a rainwater drainage leak in Otford, Kent (TN13 3), using thermal imaging, tracer gas, a damp meter, an endoscope camera, pressure testing and leak dye. Leak location: corner of the utility room. Work done: damaged section of waste pipe replaced.","triples":[["ADI case study 324","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 324","town","Otford"],["ADI case study 324","postcode sector","TN13 3"],["ADI case study 324","county","Kent"],["ADI case study 324","country","England"],["ADI case study 324","leak type","Rainwater drainage leak"],["ADI case study 324","service","Drainage Leak Detection"],["ADI case study 324","engineer","Aaron Baker"],["ADI case study 324","detection method","Thermal Imaging"],["ADI case study 324","detection method","Tracer Gas"],["ADI case study 324","detection method","Damp Meter"],["ADI case study 324","detection method","Endoscope Camera"],["ADI case study 324","detection method","Pressure Testing"],["ADI case study 324","detection method","Leak Dye"],["ADI case study 324","property type","semi-detached property on two floors"],["ADI case study 324","symptom","active water dripping in the basement"],["ADI case study 324","symptom","visible water damage to the utility room flooring"],["ADI case study 324","symptom","continuous drip appearing to come from beneath the utility room"],["ADI case study 324","system affected","waste pipework"],["ADI case study 324","test result","elevated dampness in the utility floor and the basement"],["ADI case study 324","test result","no pressure loss or gas readings on hot and cold pipework"],["ADI case study 324","test result","tracer dye put into the drainage system appeared in the basement"],["ADI case study 324","leak location","corner of the utility room"],["ADI case study 324","access made","washing machine removed"],["ADI case study 324","access made","section of the utility room floor excavated"],["ADI case study 324","repair","damaged section of waste pipe replaced"],["ADI case study 324","repair","straight coupler installed with adhesive"],["ADI case study 324","recommendation","thoroughly dry out the affected areas to prevent secondary issues"],["ADI case study 324","recommendation","check building insurance policy for trace and access cover"]]},
{"id":323,"title":"underground mains leak in Gravesend (DA3 8)","summary":"ADI Leak Detection engineer Aaron Baker investigated an underground mains leak in Gravesend, Kent (DA3 8), using acoustic correlation, tracer gas, pressure testing and visual inspection. Leak location: in the grass at the front of the property. Work done: two leaks repaired with Philmac transition couplings. Outcome: water meter no longer moved with the water back on.","triples":[["ADI case study 323","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 323","town","Gravesend"],["ADI case study 323","postcode sector","DA3 8"],["ADI case study 323","county","Kent"],["ADI case study 323","country","England"],["ADI case study 323","leak type","Underground mains leak"],["ADI case study 323","service","Water Mains Leak Detection"],["ADI case study 323","service","Underground Leak Detection"],["ADI case study 323","engineer","Aaron Baker"],["ADI case study 323","detection method","Acoustic Correlation"],["ADI case study 323","detection method","Tracer Gas"],["ADI case study 323","detection method","Pressure Testing"],["ADI case study 323","detection method","Visual Inspection"],["ADI case study 323","property type","semi-detached building on two floors"],["ADI case study 323","symptom","high water bills"],["ADI case study 323","symptom","no visible signs of damage in the property"],["ADI case study 323","pipe material","black alkathene"],["ADI case study 323","test result","water meter still spinning with the stop cock isolated"],["ADI case study 323","test result","pressure dropped from 2 bar to 0 within a couple of minutes"],["ADI case study 323","test result","pressure still dropping on retest after the first repair"],["ADI case study 323","leak location","in the grass at the front of the property"],["ADI case study 323","leak location","pin hole in the black alkathene pipe"],["ADI case study 323","access made","two separate excavations on the mains pipework"],["ADI case study 323","repair","two leaks repaired with Philmac transition couplings"],["ADI case study 323","outcome","water meter no longer moved with the water back on"],["ADI case study 323","outcome","pressure did not drop during 1 hour pressure tests"],["ADI case study 323","recommendation","have the front lawn fully reinstated"],["ADI case study 323","recommendation","fully replace the incoming mains if further leaks occur, due to rocks in the excavations"]]},
{"id":322,"title":"central heating leak in Southampton (SO18 2)","summary":"ADI Leak Detection engineer Aaron Baker investigated a central heating leak in Southampton, Hampshire (SO18 2), using thermal imaging, tracer gas, a damp meter and pressure testing. Leak location: compression tee piece beneath the dining room floor. Work done: compression tee piece replaced with a soldered fitting using flux, solder and gas. Outcome: no further leaks detected on retest.","triples":[["ADI case study 322","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 322","town","Southampton"],["ADI case study 322","postcode sector","SO18 2"],["ADI case study 322","county","Hampshire"],["ADI case study 322","country","England"],["ADI case study 322","leak type","Central heating leak"],["ADI case study 322","service","Central Heating Leak Detection"],["ADI case study 322","service","Heating Leak Detection"],["ADI case study 322","engineer","Aaron Baker"],["ADI case study 322","detection method","Thermal Imaging"],["ADI case study 322","detection method","Tracer Gas"],["ADI case study 322","detection method","Damp Meter"],["ADI case study 322","detection method","Pressure Testing"],["ADI case study 322","property type","bungalow"],["ADI case study 322","symptom","pressure topped up that morning, reading over 1 bar on arrival"],["ADI case study 322","symptom","no clear visible signs of damage"],["ADI case study 322","test result","thermal camera showed no anomalies along the heating pipework"],["ADI case study 322","test result","elevated tracer gas readings near the dining room radiator after several hours"],["ADI case study 322","leak location","compression tee piece beneath the dining room floor"],["ADI case study 322","access made","dining room floor excavated"],["ADI case study 322","repair","compression tee piece replaced with a soldered fitting using flux, solder and gas"],["ADI case study 322","outcome","no further leaks detected on retest"],["ADI case study 322","outcome","central heating and hot water systems fully operational"],["ADI case study 322","recommendation","replace the inoperable bleed nipple on the dining room radiator"],["ADI case study 322","recommendation","no further works required relating to the pressure system"]]},
{"id":321,"title":"internal cold mains leak in Hawkinge (CT18 8)","summary":"ADI Leak Detection engineer Aaron Baker investigated an internal cold mains leak in Hawkinge, Kent (CT18 8), using thermal imaging, tracer gas, a damp meter, an endoscope camera, pressure testing and flow metering. Leak location: 22mm pipework under the utility sink unit. Work done: leaking section of pipe cut out and repaired. Outcome: no further leaks found on water meter and gas tests after the repair.","triples":[["ADI case study 321","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 321","town","Hawkinge"],["ADI case study 321","postcode sector","CT18 8"],["ADI case study 321","county","Kent"],["ADI case study 321","country","England"],["ADI case study 321","leak type","Internal cold mains leak"],["ADI case study 321","service","Water Mains Leak Detection"],["ADI case study 321","service","Internal Leak Detection"],["ADI case study 321","engineer","Aaron Baker"],["ADI case study 321","detection method","Thermal Imaging"],["ADI case study 321","detection method","Tracer Gas"],["ADI case study 321","detection method","Damp Meter"],["ADI case study 321","detection method","Endoscope Camera"],["ADI case study 321","detection method","Pressure Testing"],["ADI case study 321","detection method","Flow Metering"],["ADI case study 321","property type","detached property on 2 floors"],["ADI case study 321","symptom","water damage to the hallway floor on multiple occasions"],["ADI case study 321","symptom","water meter constantly spinning"],["ADI case study 321","symptom","hallway floor removed and kitchen floor excavated before the visit without finding the leak"],["ADI case study 321","pipe material","22mm copper"],["ADI case study 321","test result","high moisture readings across the utility, kitchen, hallway and under bedroom flooring"],["ADI case study 321","test result","water meter spinning until the internal stop cock was isolated"],["ADI case study 321","test result","pressure kept dropping and gas detected under the utility sink unit"],["ADI case study 321","leak location","22mm pipework under the utility sink unit"],["ADI case study 321","access made","section of the sink unit cut out"],["ADI case study 321","access made","tiled floor excavated"],["ADI case study 321","repair","leaking section of pipe cut out and repaired"],["ADI case study 321","repair","22mm copper pipe, 22mm Yorkshire coupler, 22mm coupler and 22mm elbow used"],["ADI case study 321","outcome","no further leaks found on water meter and gas tests after the repair"],["ADI case study 321","recommendation","continue with the claim process and works to dry out the property"]]},
{"id":320,"title":"internal cold water pipe leak in Southampton (SO16 3)","summary":"ADI Leak Detection engineer Krzysztof Kobylinski investigated an internal cold water pipe leak in Southampton, Hampshire (SO16 3), using a damp meter, an endoscope camera, pressure testing and visual inspection. Leak location: underneath the bathroom basin. Work done: both leaks repaired. Outcome: no further leaks detected on the water supply system after retest.","triples":[["ADI case study 320","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 320","town","Southampton"],["ADI case study 320","postcode sector","SO16 3"],["ADI case study 320","county","Hampshire"],["ADI case study 320","country","England"],["ADI case study 320","leak type","Internal cold water pipe leak"],["ADI case study 320","service","Water Mains Leak Detection"],["ADI case study 320","service","Internal Leak Detection"],["ADI case study 320","engineer","Krzysztof Kobylinski"],["ADI case study 320","detection method","Damp Meter"],["ADI case study 320","detection method","Endoscope Camera"],["ADI case study 320","detection method","Pressure Testing"],["ADI case study 320","detection method","Visual Inspection"],["ADI case study 320","symptom","water ingress under the bathroom basin and in the kitchen"],["ADI case study 320","symptom","visible damp staining on the kitchen wall"],["ADI case study 320","symptom","main water supply turned off due to reported flooding"],["ADI case study 320","system affected","15mm copper pipe supplying the kitchen"],["ADI case study 320","pipe material","15mm copper"],["ADI case study 320","test result","water pressure approximately 6 bar, high for a domestic installation"],["ADI case study 320","test result","tile adhesive on new copper pipes and wall pipes lacking adequate protection"],["ADI case study 320","test result","flexible silver pipe to the toilet cistern too short"],["ADI case study 320","leak location","underneath the bathroom basin"],["ADI case study 320","leak location","within the kitchen wall near the ceiling"],["ADI case study 320","leak cause","poorly installed fitting under the bathroom basin"],["ADI case study 320","repair","both leaks repaired"],["ADI case study 320","repair","15mm press fittings, 15mm copper pipe and silver isolation valves used"],["ADI case study 320","outcome","no further leaks detected on the water supply system after retest"],["ADI case study 320","recommendation","monitor all newly installed fittings for signs of leakage"],["ADI case study 320","recommendation","install a pressure reducing valve because of the high water pressure"],["ADI case study 320","recommendation","long-term integrity of the system may need further attention"]]},
{"id":319,"title":"private water supply leak in Didcot (OX11 0)","summary":"ADI Leak Detection engineer Krzysztof Kobylinski investigated a private water supply leak in Didcot, Oxfordshire (OX11 0), using acoustic listening, tracer gas, visual inspection and sectional isolation. Leak location: stop valve inside a buried chamber serving the water troughs. Work done: leak on the stop valve repaired. Outcome: readings point to a faulty digital meter or a missing or non-functioning check valve.","triples":[["ADI case study 319","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 319","town","Didcot"],["ADI case study 319","postcode sector","OX11 0"],["ADI case study 319","county","Oxfordshire"],["ADI case study 319","country","England"],["ADI case study 319","leak type","Private water supply leak"],["ADI case study 319","service","Water Mains Leak Detection"],["ADI case study 319","service","Underground Leak Detection"],["ADI case study 319","customer type","Agricultural / Private Supply"],["ADI case study 319","engineer","Krzysztof Kobylinski"],["ADI case study 319","detection method","Acoustic Listening"],["ADI case study 319","detection method","Tracer Gas"],["ADI case study 319","detection method","Visual Inspection"],["ADI case study 319","detection method","Sectional Isolation"],["ADI case study 319","property type","farm"],["ADI case study 319","symptom","digital water meter registering 2 litres per minute"],["ADI case study 319","test result","high gas readings at a hidden valve supplying the water troughs"],["ADI case study 319","test result","meter still reading about 1 litre every 10 minutes after repairs"],["ADI case study 319","test result","meter appeared to show water flowing both forward and backwards"],["ADI case study 319","leak location","stop valve inside a buried chamber serving the water troughs"],["ADI case study 319","leak location","garden tap supply pipe"],["ADI case study 319","access made","excavation with chamber sections removed"],["ADI case study 319","repair","leak on the stop valve repaired"],["ADI case study 319","repair","garden tap supply pipe isolated as the tap is no longer in use"],["ADI case study 319","outcome","readings point to a faulty digital meter or a missing or non-functioning check valve"],["ADI case study 319","outcome","3 minor leaks on fittings to be repaired by a plumber the customer arranged"],["ADI case study 319","recommendation","contact the Water Board"],["ADI case study 319","recommendation","have the digital water meter inspected and possibly replaced"],["ADI case study 319","recommendation","install a check valve to prevent backflow and ensure accurate readings"]]},
{"id":318,"title":"central heating leak in Bromley (CR0 7)","summary":"ADI Leak Detection engineer Krzysztof Kobylinski investigated a central heating leak in Bromley, Greater London (CR0 7), using acoustic listening, acoustic correlation, tracer gas, visual inspection and pressure testing. Leak location: under the kitchen worktop, just beneath the wall and almost under the shower tray. Work done: damaged pipe section repaired with compression pushfit fittings, inserts and Hep2o pipe. Outcome: heating system refilled and all working.","triples":[["ADI case study 318","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 318","town","Bromley"],["ADI case study 318","postcode sector","CR0 7"],["ADI case study 318","county","Greater London"],["ADI case study 318","country","England"],["ADI case study 318","leak type","Central heating leak"],["ADI case study 318","service","Central Heating Leak Detection"],["ADI case study 318","service","Heating Leak Detection"],["ADI case study 318","engineer","Krzysztof Kobylinski"],["ADI case study 318","detection method","Acoustic Listening"],["ADI case study 318","detection method","Acoustic Correlation"],["ADI case study 318","detection method","Tracer Gas"],["ADI case study 318","detection method","Visual Inspection"],["ADI case study 318","detection method","Pressure Testing"],["ADI case study 318","property type","garage converted into a studio flat"],["ADI case study 318","symptom","heating system off for around one week"],["ADI case study 318","symptom","pressure would not hold when filling the system"],["ADI case study 318","symptom","no water showing"],["ADI case study 318","pipe material","15mm grey plastic"],["ADI case study 318","test result","no tracer gas readings even after using the full amount"],["ADI case study 318","test result","noise and then a gas reading under the garage kitchen worktop"],["ADI case study 318","test result","no further leaks detected when the heating system was tested"],["ADI case study 318","leak location","under the kitchen worktop, just beneath the wall and almost under the shower tray"],["ADI case study 318","leak cause","pipe damaged by rats"],["ADI case study 318","access made","excavation under the kitchen worktop"],["ADI case study 318","access made","wall opening under the kitchen worktop enlarged"],["ADI case study 318","repair","damaged pipe section repaired with compression pushfit fittings, inserts and Hep2o pipe"],["ADI case study 318","outcome","heating system refilled and all working"],["ADI case study 318","outcome","pipe section under the shower tray remains in poor condition"],["ADI case study 318","recommendation","keep an eye on heating pressure"],["ADI case study 318","recommendation","rat extermination company required"]]},
{"id":317,"title":"hot water cylinder overflow leak in Haywards Heath (RH16 4)","summary":"ADI Leak Detection engineer Krzysztof Kobylinski investigated a hot water cylinder overflow leak in Haywards Heath, West Sussex (RH16 4), using a damp meter, leak dye, an endoscope camera, pressure testing and tracer gas. Leak location: overflow waste pipe in the kitchen ceiling void. Work done: faulty pipe section and two tee push-fit fittings replaced with new parts. Outcome: overflow waste pipe fully sealed with no further leaks detected.","triples":[["ADI case study 317","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 317","town","Haywards Heath"],["ADI case study 317","postcode sector","RH16 4"],["ADI case study 317","county","West Sussex"],["ADI case study 317","country","England"],["ADI case study 317","leak type","Hot water cylinder overflow leak"],["ADI case study 317","service","Hot Water Leak Detection"],["ADI case study 317","service","Internal Leak Detection"],["ADI case study 317","engineer","Krzysztof Kobylinski"],["ADI case study 317","detection method","Damp Meter"],["ADI case study 317","detection method","Leak Dye"],["ADI case study 317","detection method","Endoscope Camera"],["ADI case study 317","detection method","Pressure Testing"],["ADI case study 317","detection method","Tracer Gas"],["ADI case study 317","symptom","damaged kitchen ceiling"],["ADI case study 317","symptom","visible watermark on the kitchen ceiling"],["ADI case study 317","symptom","no water showing"],["ADI case study 317","system affected","overflow pipe connected to the hot water cylinder"],["ADI case study 317","test result","damp meter found the kitchen ceiling watermark completely dry"],["ADI case study 317","test result","dye test in the upstairs bathroom showed no leakage in the kitchen ceiling"],["ADI case study 317","test result","gas pressure test on hot and cold supplies showed no pressure drop"],["ADI case study 317","leak location","overflow waste pipe in the kitchen ceiling void"],["ADI case study 317","leak cause","small pieces of wood lodged between the pipe and the rubber gasket"],["ADI case study 317","access made","a few inspection holes made in the kitchen ceiling"],["ADI case study 317","access made","square sections of the ceiling cut out"],["ADI case study 317","repair","faulty pipe section and two tee push-fit fittings replaced with new parts"],["ADI case study 317","repair","32mm plastic waste pipe, 45-degree and 90-degree elbows and silicone used"],["ADI case study 317","outcome","overflow waste pipe fully sealed with no further leaks detected"],["ADI case study 317","recommendation","reinstall grout in the upstairs bathroom floor"],["ADI case study 317","recommendation","reinstall silicone around the shower tray"]]},
{"id":316,"title":"central heating leak in Bordon (GU35 0)","summary":"ADI Leak Detection engineer Krzysztof Kobylinski investigated a central heating leak in Bordon, Hampshire (GU35 0), using acoustic listening, thermal imaging, tracer gas, a damp meter and pressure testing. Leak location: section of copper heating pipe beneath the hallway floor. Work done: approximately 1 metre of copper pipe replaced. Outcome: pressure test after the repair gave good results.","triples":[["ADI case study 316","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 316","town","Bordon"],["ADI case study 316","postcode sector","GU35 0"],["ADI case study 316","county","Hampshire"],["ADI case study 316","country","England"],["ADI case study 316","leak type","Central heating leak"],["ADI case study 316","service","Central Heating Leak Detection"],["ADI case study 316","service","Heating Leak Detection"],["ADI case study 316","engineer","Krzysztof Kobylinski"],["ADI case study 316","detection method","Acoustic Listening"],["ADI case study 316","detection method","Thermal Imaging"],["ADI case study 316","detection method","Tracer Gas"],["ADI case study 316","detection method","Damp Meter"],["ADI case study 316","detection method","Pressure Testing"],["ADI case study 316","symptom","no heating"],["ADI case study 316","symptom","boiler pressure at 0 bar"],["ADI case study 316","symptom","no water showing and no damage found"],["ADI case study 316","system affected","copper heating pipes beneath the concrete floor"],["ADI case study 316","pipe material","copper"],["ADI case study 316","test result","clear noise detected on one hallway radiator with a listening stick"],["ADI case study 316","test result","strong tracer gas reading near the hallway radiator"],["ADI case study 316","leak location","section of copper heating pipe beneath the hallway floor"],["ADI case study 316","leak cause","copper pipe section in very poor condition"],["ADI case study 316","access made","carpet removed and a hole made in the concrete floor"],["ADI case study 316","access made","120mm channel made in the concrete floor"],["ADI case study 316","repair","approximately 1 metre of copper pipe replaced"],["ADI case study 316","repair","two straight 15mm copper connectors, 15mm copper pipe and a 15mm push-fit elbow used"],["ADI case study 316","outcome","pressure test after the repair gave good results"],["ADI case study 316","outcome","concrete floor not reinstated, as remedial works are not carried out"]]},
{"id":315,"title":"underground water mains leak in Wokingham (RG40 1)","summary":"ADI Leak Detection engineer Krzysztof Kobylinski investigated an underground water mains leak in Wokingham, Berkshire (RG40 1), using acoustic listening, tracer gas, acoustic correlation and a ground microphone. Leak location: beneath the building bricks and under a thick concrete layer. Work done: leak repaired with 2 Philmac fittings. Outcome: all excavations backfilled.","triples":[["ADI case study 315","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 315","town","Wokingham"],["ADI case study 315","postcode sector","RG40 1"],["ADI case study 315","county","Berkshire"],["ADI case study 315","country","England"],["ADI case study 315","leak type","Underground water mains leak"],["ADI case study 315","service","Water Mains Leak Detection"],["ADI case study 315","service","Underground Leak Detection"],["ADI case study 315","engineer","Krzysztof Kobylinski"],["ADI case study 315","detection method","Acoustic Listening"],["ADI case study 315","detection method","Tracer Gas"],["ADI case study 315","detection method","Acoustic Correlation"],["ADI case study 315","detection method","Ground Microphone"],["ADI case study 315","symptom","no water showing"],["ADI case study 315","system affected","main water supply pipe"],["ADI case study 315","pipe material","20mm black poly"],["ADI case study 315","test result","no anomalies detected with listening equipment at first"],["ADI case study 315","test result","second gas reading dissipated within five minutes"],["ADI case study 315","test result","strong noise and gas reading on the driveway"],["ADI case study 315","leak location","beneath the building bricks and under a thick concrete layer"],["ADI case study 315","access made","excavation on the driveway exposed the water supply pipe"],["ADI case study 315","access made","third excavation extended, encountering large concrete"],["ADI case study 315","repair","leak repaired with 2 Philmac fittings"],["ADI case study 315","outcome","all excavations backfilled"]]},
{"id":314,"title":"central heating leak in Amesbury (SP11 7)","summary":"ADI Leak Detection engineer Krzysztof Kobylinski investigated a central heating leak in Amesbury, Hampshire (SP11 7), using acoustic correlation, thermal imaging, tracer gas, a damp meter and pressure testing. Leak location: copper tee junction beneath the hallway floor. Work done: leak repaired with six press-fit fittings and copper pipe. Outcome: heating system held pressure on retest with no more leaks.","triples":[["ADI case study 314","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 314","town","Amesbury"],["ADI case study 314","postcode sector","SP11 7"],["ADI case study 314","county","Hampshire"],["ADI case study 314","country","England"],["ADI case study 314","leak type","Central heating leak"],["ADI case study 314","service","Central Heating Leak Detection"],["ADI case study 314","service","Heating Leak Detection"],["ADI case study 314","engineer","Krzysztof Kobylinski"],["ADI case study 314","detection method","Acoustic Correlation"],["ADI case study 314","detection method","Thermal Imaging"],["ADI case study 314","detection method","Tracer Gas"],["ADI case study 314","detection method","Damp Meter"],["ADI case study 314","detection method","Pressure Testing"],["ADI case study 314","symptom","high damp readings on the hallway wall near the bathroom"],["ADI case study 314","symptom","no water showing"],["ADI case study 314","pipe material","copper"],["ADI case study 314","test result","damp reading in the middle of the hallway floor under the carpet"],["ADI case study 314","test result","tracer gas reading at the end of the hallway"],["ADI case study 314","leak location","copper tee junction beneath the hallway floor"],["ADI case study 314","access made","hallway carpet removed"],["ADI case study 314","access made","flooring excavated with customer permission"],["ADI case study 314","repair","leak repaired with six press-fit fittings and copper pipe"],["ADI case study 314","outcome","heating system held pressure on retest with no more leaks"],["ADI case study 314","outcome","system refilled and heated with all radiators working and hot"],["ADI case study 314","recommendation","put the carpet back after the concrete floor has dried"]]},
{"id":313,"title":"central heating leak in Bath (BA3 4)","summary":"ADI Leak Detection engineer Krzysztof Kobylinski investigated a central heating leak in Bath, Somerset (BA3 4), using acoustic correlation, thermal imaging, tracer gas, a damp meter and pressure testing. Leak location: underneath the bathroom ceramic tiles. Work done: old copper pipe replaced with new 15mm Hep2O and copper section. Outcome: no further leaks detected on retest.","triples":[["ADI case study 313","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 313","town","Bath"],["ADI case study 313","postcode sector","BA3 4"],["ADI case study 313","county","Somerset"],["ADI case study 313","country","England"],["ADI case study 313","leak type","Central heating leak"],["ADI case study 313","service","Central Heating Leak Detection"],["ADI case study 313","service","Heating Leak Detection"],["ADI case study 313","engineer","Krzysztof Kobylinski"],["ADI case study 313","detection method","Acoustic Correlation"],["ADI case study 313","detection method","Thermal Imaging"],["ADI case study 313","detection method","Tracer Gas"],["ADI case study 313","detection method","Damp Meter"],["ADI case study 313","detection method","Pressure Testing"],["ADI case study 313","symptom","no pressure on the heating system"],["ADI case study 313","symptom","no visible water or damage"],["ADI case study 313","pipe material","copper"],["ADI case study 313","test result","system lost pressure within 2 minutes of the boiler being turned on"],["ADI case study 313","test result","rapid pressure loss after around 10 minutes on the compressor"],["ADI case study 313","test result","strong noise detected near the ensuite bathroom"],["ADI case study 313","leak location","underneath the bathroom ceramic tiles"],["ADI case study 313","access made","carpet removed to expose the heating pipe channel"],["ADI case study 313","access made","one bathroom tile removed"],["ADI case study 313","repair","old copper pipe replaced with new 15mm Hep2O and copper section"],["ADI case study 313","repair","15mm pressing elbow used in the repair"],["ADI case study 313","outcome","no further leaks detected on retest"],["ADI case study 313","outcome","heating system refilled and left fully working"]]},
{"id":312,"title":"underground water mains leak in Brandon (CV3 4)","summary":"ADI Leak Detection engineer Krzysztof Kobylinski investigated an underground water mains leak in Brandon, West Midlands (CV3 4), using acoustic listening, tracer gas, visual inspection and pressure testing. Leak location: 25mm MDPE elbow fitting in the shared alleyway. Work done: correct pipe inserts installed and fitting securely fastened. Outcome: retest found no further leaks on the external water supply.","triples":[["ADI case study 312","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 312","town","Brandon"],["ADI case study 312","postcode sector","CV3 4"],["ADI case study 312","county","West Midlands"],["ADI case study 312","country","England"],["ADI case study 312","leak type","Underground water mains leak"],["ADI case study 312","service","Water Mains Leak Detection"],["ADI case study 312","service","Underground Leak Detection"],["ADI case study 312","engineer","Krzysztof Kobylinski"],["ADI case study 312","detection method","Acoustic Listening"],["ADI case study 312","detection method","Tracer Gas"],["ADI case study 312","detection method","Visual Inspection"],["ADI case study 312","detection method","Pressure Testing"],["ADI case study 312","symptom","water meter spinning"],["ADI case study 312","symptom","noticeable drop in water pressure"],["ADI case study 312","symptom","recent increase in water bill"],["ADI case study 312","system affected","external water supply"],["ADI case study 312","pipe material","MDPE"],["ADI case study 312","test result","strong noise and tracer gas detected in the rear alleyway area"],["ADI case study 312","leak location","25mm MDPE elbow fitting in the shared alleyway"],["ADI case study 312","leak cause","pipe section cut too short"],["ADI case study 312","leak cause","two pipe inserts missing"],["ADI case study 312","access made","excavation in the shared alleyway with permission from the neighbouring property"],["ADI case study 312","repair","correct pipe inserts installed and fitting securely fastened"],["ADI case study 312","repair","Plasson straight coupler and elbow, pipe inserts and 25mm MDPE pipe installed"],["ADI case study 312","outcome","retest found no further leaks on the external water supply"],["ADI case study 312","outcome","excavation backfilled"],["ADI case study 312","recommendation","review building insurance policy for trace and access cover"],["ADI case study 312","recommendation","monitor the water meter for any unusual activity"]]},
{"id":311,"title":"internal cold mains leak in Cosham (PO6 2)","summary":"ADI Leak Detection engineer Krzysztof Kobylinski investigated an internal cold mains leak in Cosham, Hampshire (PO6 2), using acoustic correlation, tracer gas, visual inspection and pressure testing. Leak location: lead tee junction beneath the kitchen floor. Work done: two lead tee junctions replaced with plastic pipework and fittings. Outcome: system tested and confirmed leak-free with no further leaks on the internal main.","triples":[["ADI case study 311","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 311","town","Cosham"],["ADI case study 311","postcode sector","PO6 2"],["ADI case study 311","county","Hampshire"],["ADI case study 311","country","England"],["ADI case study 311","leak type","Internal cold mains leak"],["ADI case study 311","service","Water Mains Leak Detection"],["ADI case study 311","service","Internal Leak Detection"],["ADI case study 311","engineer","Krzysztof Kobylinski"],["ADI case study 311","detection method","Acoustic Correlation"],["ADI case study 311","detection method","Tracer Gas"],["ADI case study 311","detection method","Visual Inspection"],["ADI case study 311","detection method","Pressure Testing"],["ADI case study 311","symptom","damage to the conservatory wall with no visible water"],["ADI case study 311","pipe material","lead"],["ADI case study 311","test result","acoustic equipment detected noise in the conservatory area"],["ADI case study 311","test result","positive tracer gas readings beneath the kitchen floor"],["ADI case study 311","leak location","lead tee junction beneath the kitchen floor"],["ADI case study 311","access made","skirting boards and floor panels removed and floorboards lifted"],["ADI case study 311","repair","two lead tee junctions replaced with plastic pipework and fittings"],["ADI case study 311","repair","internal stop valve replaced with a 25mm Plasson plastic stop valve"],["ADI case study 311","repair","25mm MDPE used with 2 equal tees, 5 straight couplings and 6 rubber adapters"],["ADI case study 311","outcome","system tested and confirmed leak-free with no further leaks on the internal main"],["ADI case study 311","outcome","floorboards and laminate flooring reinstated"]]},
{"id":310,"title":"lead water mains leak in Kirkbymoorside (YO62 6)","summary":"ADI Leak Detection engineer Robert Gires investigated a lead water mains leak in Kirkbymoorside, North Yorkshire (YO62 6), using thermal imaging, a damp meter, an endoscope camera, pressure testing and acoustic listening. Leak location: external main under the door frame between the kitchen and corridor. Work done: repaired with a lead pipe adapter and plastic pipe.","triples":[["ADI case study 310","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 310","town","Kirkbymoorside"],["ADI case study 310","postcode sector","YO62 6"],["ADI case study 310","county","North Yorkshire"],["ADI case study 310","country","England"],["ADI case study 310","leak type","Lead water mains leak"],["ADI case study 310","service","Water Mains Leak Detection"],["ADI case study 310","service","Underground Leak Detection"],["ADI case study 310","engineer","Robert Gires"],["ADI case study 310","detection method","Thermal Imaging"],["ADI case study 310","detection method","Damp Meter"],["ADI case study 310","detection method","Endoscope Camera"],["ADI case study 310","detection method","Pressure Testing"],["ADI case study 310","detection method","Acoustic Listening"],["ADI case study 310","property type","large terraced house"],["ADI case study 310","symptom","water visibly coming up at the front of the property"],["ADI case study 310","pipe material","lead"],["ADI case study 310","test result","external main and internal cold water pipe lost pressure too fast to test"],["ADI case study 310","test result","leak noise heard next to the door and kitchen unit while pressurising"],["ADI case study 310","test result","water pressure over 7 bar with the leak"],["ADI case study 310","leak location","external main under the door frame between the kitchen and corridor"],["ADI case study 310","access made","floor dug up in the kitchen"],["ADI case study 310","access made","wood floor and 100 mm insulation removed and concrete floor dug up"],["ADI case study 310","repair","repaired with a lead pipe adapter and plastic pipe"],["ADI case study 310","recommendation","replace the very old lead external main cold water pipe urgently"],["ADI case study 310","recommendation","install a pressure reduction valve in the kitchen as water pressure is very high"]]},
{"id":309,"title":"internal cold mains leak in Welton (HU15 1)","summary":"ADI Leak Detection engineer Robert Gires investigated an internal cold mains leak in Welton, East Riding of Yorkshire (HU15 1), using pressure testing, tracer gas and visual inspection. Leak location: beneath the kitchen unit floor in the utility room. Work done: elbow and small pieces of pipe replaced. Outcome: all pipework held 5 bar for 60 minutes with no pressure loss after the repair.","triples":[["ADI case study 309","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 309","town","Welton"],["ADI case study 309","postcode sector","HU15 1"],["ADI case study 309","county","East Riding of Yorkshire"],["ADI case study 309","country","England"],["ADI case study 309","leak type","Internal cold mains leak"],["ADI case study 309","service","Water Mains Leak Detection"],["ADI case study 309","service","Internal Leak Detection"],["ADI case study 309","engineer","Robert Gires"],["ADI case study 309","detection method","Pressure Testing"],["ADI case study 309","detection method","Tracer Gas"],["ADI case study 309","detection method","Visual Inspection"],["ADI case study 309","property type","very large detached house converted into a large apartment"],["ADI case study 309","symptom","water meter constantly spinning very slowly"],["ADI case study 309","symptom","water meter not moving with the internal cold water stopcock off"],["ADI case study 309","test result","internal cold water pipe failed a 4 bar test over 30 minutes"],["ADI case study 309","test result","tracer gas at 4 bar found under the kitchen unit next to the washing machine"],["ADI case study 309","leak location","beneath the kitchen unit floor in the utility room"],["ADI case study 309","leak cause","faulty plastic push fit fitting"],["ADI case study 309","access made","kitchen unit removed and concrete floor dug up"],["ADI case study 309","repair","elbow and small pieces of pipe replaced"],["ADI case study 309","outcome","all pipework held 5 bar for 60 minutes with no pressure loss after the repair"],["ADI case study 309","outcome","no tracer gas picked up after the repair"],["ADI case study 309","recommendation","install a pressure reduction valve on the internal cold water pipe"],["ADI case study 309","recommendation","leave the leak area to dry before the concrete is repaired"]]},
{"id":308,"title":"hot water pipe leak in Grimsby (DN33 2)","summary":"ADI Leak Detection engineer Robert Gires investigated a hot water pipe leak in Grimsby, Lincolnshire (DN33 2), using thermal imaging, a damp meter, pressure testing and visual inspection. Leak location: hot water pipe beneath the concrete slab in the utility room. Work done: damaged section repaired with new copper pipe and copper fittings.","triples":[["ADI case study 308","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 308","town","Grimsby"],["ADI case study 308","postcode sector","DN33 2"],["ADI case study 308","county","Lincolnshire"],["ADI case study 308","country","England"],["ADI case study 308","leak type","Hot water pipe leak"],["ADI case study 308","service","Hot Water Leak Detection"],["ADI case study 308","service","Internal Leak Detection"],["ADI case study 308","engineer","Robert Gires"],["ADI case study 308","detection method","Thermal Imaging"],["ADI case study 308","detection method","Damp Meter"],["ADI case study 308","detection method","Pressure Testing"],["ADI case study 308","detection method","Visual Inspection"],["ADI case study 308","property type","large semi-detached house"],["ADI case study 308","symptom","leak on the hot water pipe that runs from beneath the boiler"],["ADI case study 308","test result","thermal imaging anomalies behind the utility room washing machine and in the kitchen floor"],["ADI case study 308","test result","very high moisture levels in the kitchen floor"],["ADI case study 308","test result","hot water pipework could not hold any pressure as the leak was too large"],["ADI case study 308","leak location","hot water pipe beneath the concrete slab in the utility room"],["ADI case study 308","access made","kitchen unit removed and concrete floor excavated"],["ADI case study 308","access made","concrete floor excavated in the utility room"],["ADI case study 308","repair","damaged section repaired with new copper pipe and copper fittings"],["ADI case study 308","recommendation","replace the pipework, which is in very poor condition"]]},
{"id":307,"title":"external cold water mains leak in New Marske (TS11 8)","summary":"ADI Leak Detection engineer Robert Gires investigated an external cold water mains leak in New Marske, North Yorkshire (TS11 8), using pressure testing, an endoscope camera, a damp meter and acoustic listening. Leak location: middle of the kitchen floor. Work done: 20 mm fitting and 2 adaptors from 20 mm to the black plastic pipe used.","triples":[["ADI case study 307","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 307","town","New Marske"],["ADI case study 307","postcode sector","TS11 8"],["ADI case study 307","county","North Yorkshire"],["ADI case study 307","country","England"],["ADI case study 307","leak type","External cold water mains leak"],["ADI case study 307","service","Water Mains Leak Detection"],["ADI case study 307","service","Underground Leak Detection"],["ADI case study 307","engineer","Robert Gires"],["ADI case study 307","detection method","Pressure Testing"],["ADI case study 307","detection method","Endoscope Camera"],["ADI case study 307","detection method","Damp Meter"],["ADI case study 307","detection method","Acoustic Listening"],["ADI case study 307","property type","large semi-detached house"],["ADI case study 307","symptom","water meter constantly spinning very slowly"],["ADI case study 307","symptom","water meter still spinning with the internal stopcock isolated"],["ADI case study 307","pipe material","black plastic"],["ADI case study 307","test result","internal cold and hot water pipes held 4 bar for 45 minutes with no loss"],["ADI case study 307","test result","external main cold water pipe failed a 4 bar test over 5 minutes"],["ADI case study 307","test result","very noisy under the kitchen unit"],["ADI case study 307","leak location","middle of the kitchen floor"],["ADI case study 307","leak cause","external main pipe under the timber floor damaged by the timber"],["ADI case study 307","access made","kitchen unit removed so an endoscope could see under the floor"],["ADI case study 307","access made","small pieces of the floor cut out"],["ADI case study 307","repair","20 mm fitting and 2 adaptors from 20 mm to the black plastic pipe used"],["ADI case study 307","recommendation","replace the external main cold water pipe"]]},
{"id":306,"title":"internal cold water leak in Wath upon Dearne (S63 7)","summary":"ADI Leak Detection engineer Robert Gires investigated an internal cold water leak in Wath upon Dearne, South Yorkshire (S63 7), using thermal imaging, acoustic correlation, a damp meter and pressure testing. Leak location: copper pipe under the floor. Work done: pipe replaced and all the pipework retested. Outcome: dishwasher disconnected because the pipework was damaged by a mouse or rat.","triples":[["ADI case study 306","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 306","town","Wath upon Dearne"],["ADI case study 306","postcode sector","S63 7"],["ADI case study 306","county","South Yorkshire"],["ADI case study 306","country","England"],["ADI case study 306","leak type","Internal cold water leak"],["ADI case study 306","service","Water Mains Leak Detection"],["ADI case study 306","service","Internal Leak Detection"],["ADI case study 306","customer type","Healthcare / Commercial Property"],["ADI case study 306","engineer","Robert Gires"],["ADI case study 306","detection method","Thermal Imaging"],["ADI case study 306","detection method","Acoustic Correlation"],["ADI case study 306","detection method","Damp Meter"],["ADI case study 306","detection method","Pressure Testing"],["ADI case study 306","property type","large care home"],["ADI case study 306","symptom","internal cold water pipe leaking very badly"],["ADI case study 306","symptom","water meter constantly spinning very fast"],["ADI case study 306","symptom","kitchen floor very wet"],["ADI case study 306","pipe material","copper"],["ADI case study 306","test result","thermal imaging found 2 cold pipes, by the dishwasher and the fridge freezer"],["ADI case study 306","test result","pipework could not be pressurised because the leak was very big"],["ADI case study 306","test result","acoustic evidence in front of the dishwasher"],["ADI case study 306","leak location","copper pipe under the floor"],["ADI case study 306","leak location","second leak next to the fridge freezer"],["ADI case study 306","leak cause","faulty fitting at the second leak"],["ADI case study 306","access made","vinyl flooring removed, with the whole floor very wet beneath"],["ADI case study 306","repair","pipe replaced and all the pipework retested"],["ADI case study 306","outcome","dishwasher disconnected because the pipework was damaged by a mouse or rat"],["ADI case study 306","recommendation","replace the internal stopcock and fit a pressure reduction valve on the cold supply"],["ADI case study 306","recommendation","replace the whole kitchen floor, which is badly damaged by water"]]},
{"id":305,"title":"central heating leak in Lincoln (LN2 2)","summary":"ADI Leak Detection engineer Robert Gires investigated a central heating leak in Lincoln, Lincolnshire (LN2 2), using thermal imaging, a damp meter, acoustic correlation and pressure testing. Leak location: beneath the kitchen and living room floor. Work done: leak repaired with a small piece of pipe and copper end caps.","triples":[["ADI case study 305","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 305","town","Lincoln"],["ADI case study 305","postcode sector","LN2 2"],["ADI case study 305","county","Lincolnshire"],["ADI case study 305","country","England"],["ADI case study 305","leak type","Central heating leak"],["ADI case study 305","service","Central Heating Leak Detection"],["ADI case study 305","service","Heating Leak Detection"],["ADI case study 305","engineer","Robert Gires"],["ADI case study 305","detection method","Thermal Imaging"],["ADI case study 305","detection method","Damp Meter"],["ADI case study 305","detection method","Acoustic Correlation"],["ADI case study 305","detection method","Pressure Testing"],["ADI case study 305","property type","very large detached house"],["ADI case study 305","symptom","heating system losing pressure"],["ADI case study 305","test result","very high damp readings in the kitchen, living room floor and adjacent wall"],["ADI case study 305","test result","water discharged from the heating system in very poor, contaminated condition"],["ADI case study 305","test result","heating system failed to hold 2 bar over 10 minutes"],["ADI case study 305","leak location","beneath the kitchen and living room floor"],["ADI case study 305","leak cause","faulty soldered fitting leaking very badly"],["ADI case study 305","access made","tiles removed and concrete floor excavated"],["ADI case study 305","repair","leak repaired with a small piece of pipe and copper end caps"],["ADI case study 305","recommendation","power flush the heating system urgently"],["ADI case study 305","recommendation","install a valve on the ground floor pipework so the heating system can be isolated"]]},
{"id":304,"title":"central heating leak in Southampton (SO18 6)","summary":"ADI Leak Detection engineer Robert Gires investigated a central heating leak in Southampton, Hampshire (SO18 6), using thermal imaging, a damp meter, tracer gas, an endoscope camera and acoustic correlation. Leak location: in the kitchen under the tiled floor. Work done: faulty fitting replaced.","triples":[["ADI case study 304","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 304","town","Southampton"],["ADI case study 304","postcode sector","SO18 6"],["ADI case study 304","county","Hampshire"],["ADI case study 304","country","England"],["ADI case study 304","leak type","Central heating leak"],["ADI case study 304","service","Water Mains Leak Detection"],["ADI case study 304","service","Internal Leak Detection"],["ADI case study 304","engineer","Robert Gires"],["ADI case study 304","detection method","Thermal Imaging"],["ADI case study 304","detection method","Damp Meter"],["ADI case study 304","detection method","Tracer Gas"],["ADI case study 304","detection method","Endoscope Camera"],["ADI case study 304","detection method","Acoustic Correlation"],["ADI case study 304","property type","large detached house"],["ADI case study 304","symptom","heating system losing pressure"],["ADI case study 304","test result","thermal imaging anomaly in the kitchen in front of the fridge freezer"],["ADI case study 304","test result","tracer gas at 1 bar held for 60 minutes with no pressure loss"],["ADI case study 304","test result","tracer gas at 3 bar picked up in the corridor under the stairs"],["ADI case study 304","leak location","in the kitchen under the tiled floor"],["ADI case study 304","leak cause","faulty push fit fitting"],["ADI case study 304","access made","2 tiles and the wooden floorboards removed"],["ADI case study 304","repair","faulty fitting replaced"],["ADI case study 304","recommendation","leave the floor open to dry properly before repairing"],["ADI case study 304","recommendation","set the boiler at a low temperature"]]},
{"id":303,"title":"underground water mains leak in Lincoln (LN6 3)","summary":"ADI Leak Detection engineer Robert Gires investigated an underground water mains leak in Lincoln, Lincolnshire (LN6 3), using pressure testing, tracer gas and acoustic listening. Leak location: in the front garden next to the water meter. Work done: damaged black plastic pipe section replaced with new blue plastic pipe and fittings.","triples":[["ADI case study 303","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 303","town","Lincoln"],["ADI case study 303","postcode sector","LN6 3"],["ADI case study 303","county","Lincolnshire"],["ADI case study 303","country","England"],["ADI case study 303","leak type","Underground water mains leak"],["ADI case study 303","service","Water Mains Leak Detection"],["ADI case study 303","service","Underground Leak Detection"],["ADI case study 303","engineer","Robert Gires"],["ADI case study 303","detection method","Pressure Testing"],["ADI case study 303","detection method","Tracer Gas"],["ADI case study 303","detection method","Acoustic Listening"],["ADI case study 303","property type","large semi-detached house"],["ADI case study 303","symptom","water meter constantly spinning"],["ADI case study 303","pipe material","black plastic"],["ADI case study 303","test result","internal cold and hot water pipes held 3 bar for 30 minutes with no loss"],["ADI case study 303","test result","external main cold water pipe failed a 3 bar tracer gas test over 10 minutes"],["ADI case study 303","test result","tracer gas and audible leak noise in the front garden next to the water meter"],["ADI case study 303","leak location","in the front garden next to the water meter"],["ADI case study 303","leak cause","cracked pipe next to a fitting"],["ADI case study 303","access made","soil excavated"],["ADI case study 303","repair","damaged black plastic pipe section replaced with new blue plastic pipe and fittings"],["ADI case study 303","recommendation","monitor the water meter regularly for unusual activity"],["ADI case study 303","recommendation","consult the insurance provider about trace and access cover on building insurance"]]},
{"id":302,"title":"central heating leak in Alton (GU34 4)","summary":"ADI Leak Detection engineer Robert Gires investigated a central heating leak in Alton, Hampshire (GU34 4), using thermal imaging, a damp meter, tracer gas and acoustic correlation. Leak location: ground floor buried pipework behind the kitchen fridge freezer and in the living room. Work done: copper pipe replaced with plastic pipe and push fit fittings.","triples":[["ADI case study 302","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 302","town","Alton"],["ADI case study 302","postcode sector","GU34 4"],["ADI case study 302","county","Hampshire"],["ADI case study 302","country","England"],["ADI case study 302","leak type","Central heating leak"],["ADI case study 302","service","Central Heating Leak Detection"],["ADI case study 302","service","Heating Leak Detection"],["ADI case study 302","engineer","Robert Gires"],["ADI case study 302","detection method","Thermal Imaging"],["ADI case study 302","detection method","Damp Meter"],["ADI case study 302","detection method","Tracer Gas"],["ADI case study 302","detection method","Acoustic Correlation"],["ADI case study 302","property type","large detached house"],["ADI case study 302","pipe material","copper"],["ADI case study 302","test result","thermal imaging anomaly behind the fridge freezer in the kitchen and in the living room"],["ADI case study 302","test result","very high damp readings on the plasterboard wall in the kitchen and living room"],["ADI case study 302","test result","tracer gas at 1.5 bar detected behind the fridge freezer and in the living room"],["ADI case study 302","leak location","ground floor buried pipework behind the kitchen fridge freezer and in the living room"],["ADI case study 302","access made","wood floor removed and concrete floor dug up"],["ADI case study 302","access made","plasterboard wall cut behind the kitchen and living room"],["ADI case study 302","repair","copper pipe replaced with plastic pipe and push fit fittings"],["ADI case study 302","recommendation","leave the heating system at low pressure and low temperature"],["ADI case study 302","recommendation","ground floor copper pipework in very bad condition and needs urgent replacement"]]},
{"id":301,"title":"underground water mains leak in Grantham (NG31 9)","summary":"ADI Leak Detection engineer Robert Gires investigated an underground water mains leak in Grantham, Lincolnshire (NG31 9), using acoustic correlation, tracer gas, pressure testing and visual inspection. Leak location: lead pipe next to the old external stopcock. Work done: damaged pipe cut and replaced with a universal transit coupling and small pieces of pipe.","triples":[["ADI case study 301","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 301","town","Grantham"],["ADI case study 301","postcode sector","NG31 9"],["ADI case study 301","county","Lincolnshire"],["ADI case study 301","country","England"],["ADI case study 301","leak type","Underground water mains leak"],["ADI case study 301","service","Water Mains Leak Detection"],["ADI case study 301","service","Underground Leak Detection"],["ADI case study 301","engineer","Robert Gires"],["ADI case study 301","detection method","Acoustic Correlation"],["ADI case study 301","detection method","Tracer Gas"],["ADI case study 301","detection method","Pressure Testing"],["ADI case study 301","detection method","Visual Inspection"],["ADI case study 301","property type","very large semi-detached house"],["ADI case study 301","symptom","water meter constantly spinning very slowly"],["ADI case study 301","symptom","water meter still spinning with the internal cold water stopcock isolated"],["ADI case study 301","pipe material","lead"],["ADI case study 301","test result","internal cold water pipework held 5.5 bar for 30 minutes with no pressure loss"],["ADI case study 301","test result","tracer gas picked up on the driveway close to the water meter"],["ADI case study 301","test result","acoustic evidence on the driveway paving close to the water meter box"],["ADI case study 301","leak location","lead pipe next to the old external stopcock"],["ADI case study 301","access made","concrete paving slab removed and soil dug out"],["ADI case study 301","repair","damaged pipe cut and replaced with a universal transit coupling and small pieces of pipe"],["ADI case study 301","recommendation","install a pressure reduction valve on the internal cold water pipe"],["ADI case study 301","recommendation","water pressure very high and could damage the internal pipework"],["ADI case study 301","recommendation","replace the very old lead external main cold water pipe"]]},
{"id":300,"title":"internal cold mains leak in Beaconsfield (HP9 2)","summary":"ADI Leak Detection engineer Richard Poberezniuk investigated an internal cold mains leak in Beaconsfield, Buckinghamshire (HP9 2), using acoustic correlation, thermal imaging, tracer gas, pressure testing and flow metering. Leak location: beneath the boxing in the ground floor WC. Work done: faulty 15mm copper pipe replaced with about a metre of 15mm Hep20 pipe.","triples":[["ADI case study 300","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 300","town","Beaconsfield"],["ADI case study 300","postcode sector","HP9 2"],["ADI case study 300","county","Buckinghamshire"],["ADI case study 300","country","England"],["ADI case study 300","leak type","Internal cold mains leak"],["ADI case study 300","service","Water Mains Leak Detection"],["ADI case study 300","service","Internal Leak Detection"],["ADI case study 300","engineer","Richard Poberezniuk"],["ADI case study 300","detection method","Acoustic Correlation"],["ADI case study 300","detection method","Thermal Imaging"],["ADI case study 300","detection method","Tracer Gas"],["ADI case study 300","detection method","Pressure Testing"],["ADI case study 300","detection method","Flow Metering"],["ADI case study 300","symptom","flow at the water meter that stopped when the internal stopcock was turned off"],["ADI case study 300","system affected","15mm supply pipe to the WC"],["ADI case study 300","pipe material","copper"],["ADI case study 300","test result","internal cold mains failed a 3 bar pressure test over 5 minutes"],["ADI case study 300","test result","acoustic noise under boxing in the ground floor WC next to the toilet pan"],["ADI case study 300","test result","noise still present with the WC isolated"],["ADI case study 300","leak location","beneath the boxing in the ground floor WC"],["ADI case study 300","leak cause","pinhole in the 15mm copper supply pipe"],["ADI case study 300","access made","excavation to locate the leak"],["ADI case study 300","repair","faulty 15mm copper pipe replaced with about a metre of 15mm Hep20 pipe"],["ADI case study 300","repair","non-working WC isolation valve replaced"],["ADI case study 300","recommendation","monitor the meter for further leaks"]]},
{"id":299,"title":"underground water mains leak in Bidford-on-Avon (B50 4)","summary":"ADI Leak Detection engineer Richard Poberezniuk investigated an underground water mains leak in Bidford-on-Avon, Warwickshire (B50 4), using tracer gas, pressure testing, flow metering and visual inspection. Leak location: under the flooding lawn, where tracer gas was seen coming up. Work done: 28mm black alkathene main repaired with a 28mm transition coupling. Outcome: external cold mains passed a 4.5 bar pressure test over 20 minutes after the repair.","triples":[["ADI case study 299","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 299","town","Bidford-on-Avon"],["ADI case study 299","postcode sector","B50 4"],["ADI case study 299","county","Warwickshire"],["ADI case study 299","country","England"],["ADI case study 299","leak type","Underground water mains leak"],["ADI case study 299","service","Water Mains Leak Detection"],["ADI case study 299","service","Underground Leak Detection"],["ADI case study 299","engineer","Richard Poberezniuk"],["ADI case study 299","detection method","Tracer Gas"],["ADI case study 299","detection method","Pressure Testing"],["ADI case study 299","detection method","Flow Metering"],["ADI case study 299","detection method","Visual Inspection"],["ADI case study 299","symptom","water seeping through the lawn on arrival"],["ADI case study 299","system affected","external 28mm cold main"],["ADI case study 299","pipe material","black alkathene"],["ADI case study 299","test result","flow at the meter with the internal stopcock off, suggesting an external cold mains leak"],["ADI case study 299","test result","internal cold mains passed a 4.5 bar pressure test over 20 minutes"],["ADI case study 299","test result","external cold mains failed a 4.5 bar pressure test over 5 minutes"],["ADI case study 299","leak location","under the flooding lawn, where tracer gas was seen coming up"],["ADI case study 299","leak cause","large rock rubbing on the 28mm cold main"],["ADI case study 299","access made","excavation where the gas surfaced in the lawn"],["ADI case study 299","repair","28mm black alkathene main repaired with a 28mm transition coupling"],["ADI case study 299","outcome","external cold mains passed a 4.5 bar pressure test over 20 minutes after the repair"],["ADI case study 299","outcome","no flow at the water meter on the final flow test"],["ADI case study 299","recommendation","monitor the water meter for excessive usage"]]},
{"id":298,"title":"hot water pipe leak in Kingswood (BS15 9)","summary":"ADI Leak Detection engineer Richard Poberezniuk investigated a hot water pipe leak in Kingswood, Gloucestershire (BS15 9), using thermal imaging, tracer gas, pressure testing and acoustic listening. Leak location: beneath the hallway floor. Work done: pinholed 15mm copper pipe replaced using 2 15mm copper couplings and short copper pipe. Outcome: repair passed a further 20 minute pressure test.","triples":[["ADI case study 298","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 298","town","Kingswood"],["ADI case study 298","postcode sector","BS15 9"],["ADI case study 298","county","Gloucestershire"],["ADI case study 298","country","England"],["ADI case study 298","leak type","Hot water pipe leak"],["ADI case study 298","service","Hot Water Leak Detection"],["ADI case study 298","service","Internal Leak Detection"],["ADI case study 298","engineer","Richard Poberezniuk"],["ADI case study 298","detection method","Thermal Imaging"],["ADI case study 298","detection method","Tracer Gas"],["ADI case study 298","detection method","Pressure Testing"],["ADI case study 298","detection method","Acoustic Listening"],["ADI case study 298","symptom","water damage to the hallway walls and floor between the kitchen and ground floor bathroom"],["ADI case study 298","symptom","warm spots in the hallway"],["ADI case study 298","system affected","15mm hot water supply to the ground floor bathroom"],["ADI case study 298","pipe material","copper"],["ADI case study 298","test result","hot water supply to the ground floor bathroom failed 2.2 bar over 5 minutes"],["ADI case study 298","test result","thermal imaging showed signs of a leak in the hallway between kitchen and bathroom"],["ADI case study 298","test result","tracer gas gave a high reading at the same hallway location"],["ADI case study 298","leak location","beneath the hallway floor"],["ADI case study 298","leak cause","pinhole in the 15mm copper pipe"],["ADI case study 298","access made","excavation in the hallway"],["ADI case study 298","repair","pinholed 15mm copper pipe replaced using 2 15mm copper couplings and short copper pipe"],["ADI case study 298","outcome","repair passed a further 20 minute pressure test"],["ADI case study 298","recommendation","monitor for further leaks on the hot and cold supplies laid in the floor"],["ADI case study 298","recommendation","consider rerouting both pipes surface mounted"],["ADI case study 298","recommendation","dry out the hallway with dehumidifiers before reinstatement"]]},
{"id":297,"title":"underground water mains leak in Dinmore (HR4 9)","summary":"ADI Leak Detection engineer Richard Poberezniuk investigated an underground water mains leak in Dinmore, Herefordshire (HR4 9), using acoustic correlation, tracer gas, pressure testing, flow metering and visual inspection. Leak location: next to the boundary wall and front gate. Work done: damaged lead pipe replaced with 2 transition couplings and a short piece of 20mm MDPE. Outcome: no flow at the meter after the repair.","triples":[["ADI case study 297","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 297","town","Dinmore"],["ADI case study 297","postcode sector","HR4 9"],["ADI case study 297","county","Herefordshire"],["ADI case study 297","country","England"],["ADI case study 297","leak type","Underground water mains leak"],["ADI case study 297","service","Water Mains Leak Detection"],["ADI case study 297","service","Underground Leak Detection"],["ADI case study 297","engineer","Richard Poberezniuk"],["ADI case study 297","detection method","Acoustic Correlation"],["ADI case study 297","detection method","Tracer Gas"],["ADI case study 297","detection method","Pressure Testing"],["ADI case study 297","detection method","Flow Metering"],["ADI case study 297","detection method","Visual Inspection"],["ADI case study 297","symptom","flow at the water meter on arrival"],["ADI case study 297","pipe material","lead"],["ADI case study 297","test result","external cold mains failed a 3.5 bar pressure test over 5 minutes"],["ADI case study 297","test result","internal cold mains passed a 3.5 bar pressure test over 20 minutes"],["ADI case study 297","test result","acoustic high reading next to the boundary wall and front gate"],["ADI case study 297","leak location","next to the boundary wall and front gate"],["ADI case study 297","access made","excavation at the location of the high readings, exposing the damaged lead mains"],["ADI case study 297","repair","damaged lead pipe replaced with 2 transition couplings and a short piece of 20mm MDPE"],["ADI case study 297","outcome","no flow at the meter after the repair"],["ADI case study 297","outcome","external cold mains passed a 3.5 bar pressure test over 20 minutes after the repair"],["ADI case study 297","recommendation","relay the lead mains in the future"]]},
{"id":296,"title":"internal cold mains leak in Barry (CF5 1)","summary":"ADI Leak Detection engineer Richard Poberezniuk investigated an internal cold mains leak in Barry, South Glamorgan (CF5 1), using acoustic correlation, tracer gas, a damp meter, pressure testing and visual inspection. Leak location: original lead pipe below the hallway floorboards, beside a transition coupling to 25mm MDPE. Work done: lead pipe repaired with a transition coupling and short piece of 25mm MDPE pipe. Outcome: further leak along the hallway found when testing after the repair.","triples":[["ADI case study 296","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 296","town","Barry"],["ADI case study 296","postcode sector","CF5 1"],["ADI case study 296","county","South Glamorgan"],["ADI case study 296","country","Wales"],["ADI case study 296","leak type","Internal cold mains leak"],["ADI case study 296","service","Water Mains Leak Detection"],["ADI case study 296","service","Internal Leak Detection"],["ADI case study 296","engineer","Richard Poberezniuk"],["ADI case study 296","detection method","Acoustic Correlation"],["ADI case study 296","detection method","Tracer Gas"],["ADI case study 296","detection method","Damp Meter"],["ADI case study 296","detection method","Pressure Testing"],["ADI case study 296","detection method","Visual Inspection"],["ADI case study 296","symptom","flow at the water meter with the internal stopcock turned off"],["ADI case study 296","pipe material","lead"],["ADI case study 296","test result","internal cold mains passed a 1.5 bar pressure test over 15 minutes"],["ADI case study 296","test result","external cold mains failed a 2.5 bar pressure test over 5 minutes"],["ADI case study 296","test result","tracer gas gave a high reading in the hallway next to the living room door"],["ADI case study 296","leak location","original lead pipe below the hallway floorboards, beside a transition coupling to 25mm MDPE"],["ADI case study 296","leak cause","hole blown out in the original lead pipe"],["ADI case study 296","access made","carpet and floorboards lifted in the hallway and excavation below the floorboards"],["ADI case study 296","repair","lead pipe repaired with a transition coupling and short piece of 25mm MDPE pipe"],["ADI case study 296","outcome","further leak along the hallway found when testing after the repair"],["ADI case study 296","recommendation","customer to appoint a contractor to replace the remaining internal lead mains"]]},
{"id":295,"title":"concealed cold mains leak in Bath (BS31 1)","summary":"ADI Leak Detection engineer Richard Poberezniuk investigated a concealed cold mains leak in Bath, Somerset (BS31 1), using pressure testing, tracer gas, a damp meter, an endoscope camera and acoustic listening. Leak location: on the cold main beneath the kitchen floor. Work done: 15mm copper cold main cut at both excavations to pull out the leaking pipe. Outcome: external cold mains passed a 4 bar pressure test over 30 minutes after the repair.","triples":[["ADI case study 295","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 295","town","Bath"],["ADI case study 295","postcode sector","BS31 1"],["ADI case study 295","county","Somerset"],["ADI case study 295","country","England"],["ADI case study 295","leak type","Concealed cold mains leak"],["ADI case study 295","service","Water Mains Leak Detection"],["ADI case study 295","service","Underground Leak Detection"],["ADI case study 295","engineer","Richard Poberezniuk"],["ADI case study 295","detection method","Pressure Testing"],["ADI case study 295","detection method","Tracer Gas"],["ADI case study 295","detection method","Damp Meter"],["ADI case study 295","detection method","Endoscope Camera"],["ADI case study 295","detection method","Acoustic Listening"],["ADI case study 295","symptom","water damage to the kitchen wall"],["ADI case study 295","system affected","15mm incoming cold main in Armaflex lagging"],["ADI case study 295","pipe material","copper"],["ADI case study 295","test result","internal cold mains passed a 4 bar pressure test over 20 minutes"],["ADI case study 295","test result","external cold mains failed a 4 bar pressure test over 5 minutes"],["ADI case study 295","test result","tracer gas gave high readings behind the dishwasher and in the internal kitchen wall"],["ADI case study 295","leak location","on the cold main beneath the kitchen floor"],["ADI case study 295","leak cause","leaking soldered joint"],["ADI case study 295","access made","built in dishwasher removed and excavations carried out"],["ADI case study 295","access made","excavation in the concrete screed floor near the internal wall"],["ADI case study 295","repair","15mm copper cold main cut at both excavations to pull out the leaking pipe"],["ADI case study 295","repair","leaking copper mains replaced with 3 metres of 15mm Hep20"],["ADI case study 295","outcome","external cold mains passed a 4 bar pressure test over 30 minutes after the repair"],["ADI case study 295","recommendation","dry out with a dehumidifier before making good the floors and redecorating"]]},
{"id":294,"title":"central heating leak in Brackley (NN13 5)","summary":"ADI Leak Detection engineer Richard Poberezniuk investigated a central heating leak in Brackley, Northamptonshire (NN13 5), using acoustic correlation, tracer gas, an endoscope camera, pressure testing and a borescope. Leak location: beneath the floor of a cupboard in the hallway. Work done: damaged 15mm push fit elbow replaced with a new one. Outcome: heating circuit passed a 2 bar pressure test over 15 minutes.","triples":[["ADI case study 294","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 294","town","Brackley"],["ADI case study 294","postcode sector","NN13 5"],["ADI case study 294","county","Northamptonshire"],["ADI case study 294","country","England"],["ADI case study 294","leak type","Central heating leak"],["ADI case study 294","service","Central Heating Leak Detection"],["ADI case study 294","service","Heating Leak Detection"],["ADI case study 294","engineer","Richard Poberezniuk"],["ADI case study 294","detection method","Acoustic Correlation"],["ADI case study 294","detection method","Tracer Gas"],["ADI case study 294","detection method","Endoscope Camera"],["ADI case study 294","detection method","Pressure Testing"],["ADI case study 294","detection method","Borescope"],["ADI case study 294","test result","no pressure could be built in the heating circuit"],["ADI case study 294","test result","tracer gas gave high readings in several areas of the hallway"],["ADI case study 294","test result","loudest acoustic noise pinned down to a cupboard in the hallway"],["ADI case study 294","leak location","beneath the floor of a cupboard in the hallway"],["ADI case study 294","leak cause","rodents nibbling a 15mm push fit elbow"],["ADI case study 294","access made","hole drilled in the flooring for the endoscope"],["ADI case study 294","access made","oak flooring lifted to reach the leaking elbow"],["ADI case study 294","repair","damaged 15mm push fit elbow replaced with a new one"],["ADI case study 294","outcome","heating circuit passed a 2 bar pressure test over 15 minutes"],["ADI case study 294","outcome","14 radiators vented and all heating up on completion"],["ADI case study 294","recommendation","contact a flooring contractor to refit the oak flooring"]]},
{"id":293,"title":"central heating leak in Cricklade (SN6 6)","summary":"ADI Leak Detection engineer Richard Poberezniuk investigated a central heating leak in Cricklade, Wiltshire (SN6 6), using pressure testing, tracer gas, an endoscope camera and sectional isolation. Leak location: behind the hob unit. Work done: sharp stone removed. Outcome: heating circuit passed a 2 bar pressure test over 20 minutes.","triples":[["ADI case study 293","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 293","town","Cricklade"],["ADI case study 293","postcode sector","SN6 6"],["ADI case study 293","county","Wiltshire"],["ADI case study 293","country","England"],["ADI case study 293","leak type","Central heating leak"],["ADI case study 293","service","Central Heating Leak Detection"],["ADI case study 293","service","Heating Leak Detection"],["ADI case study 293","engineer","Richard Poberezniuk"],["ADI case study 293","detection method","Pressure Testing"],["ADI case study 293","detection method","Tracer Gas"],["ADI case study 293","detection method","Endoscope Camera"],["ADI case study 293","detection method","Sectional Isolation"],["ADI case study 293","symptom","heating system losing pressure within 10 minutes"],["ADI case study 293","system affected","redundant heating pipe"],["ADI case study 293","pipe material","copper"],["ADI case study 293","test result","heating refilled to 1 bar dropped to 0 within 10 minutes"],["ADI case study 293","test result","pressure still dropped to 0 within 10 minutes after isolating underfloor circuit 2"],["ADI case study 293","test result","tracer gas gave a high reading in the kitchen and a bubbling noise was heard"],["ADI case study 293","leak location","behind the hob unit"],["ADI case study 293","leak cause","sharp stone cutting into the pipe"],["ADI case study 293","access made","piece of the wall cut away"],["ADI case study 293","access made","area behind the hob unit exposed to reach the 15mm copper pipe"],["ADI case study 293","repair","sharp stone removed"],["ADI case study 293","repair","redundant leaking 15mm copper pipe cut short and capped off"],["ADI case study 293","outcome","heating circuit passed a 2 bar pressure test over 20 minutes"],["ADI case study 293","outcome","heating system refilled and 6 radiators vented"],["ADI case study 293","recommendation","allow drying out before full reinstatement of the excavations"]]},
{"id":292,"title":"underground water mains leak in Gloucester (GL5 1)","summary":"ADI Leak Detection engineer Richard Poberezniuk investigated an underground water mains leak in Gloucester, Gloucestershire (GL5 1), using acoustic correlation, tracer gas, pressure testing, flow metering and visual inspection. Leak location: conversion joint in the concrete courtyard. Work done: faulty joint replaced with 25mm x 15mm transition coupling, 25mm MDPE coupling and pipe. Outcome: repair passed a 4.2 bar pressure test over 10 minutes.","triples":[["ADI case study 292","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 292","town","Gloucester"],["ADI case study 292","postcode sector","GL5 1"],["ADI case study 292","county","Gloucestershire"],["ADI case study 292","country","England"],["ADI case study 292","leak type","Underground water mains leak"],["ADI case study 292","service","Water Mains Leak Detection"],["ADI case study 292","service","Underground Leak Detection"],["ADI case study 292","engineer","Richard Poberezniuk"],["ADI case study 292","detection method","Acoustic Correlation"],["ADI case study 292","detection method","Tracer Gas"],["ADI case study 292","detection method","Pressure Testing"],["ADI case study 292","detection method","Flow Metering"],["ADI case study 292","detection method","Visual Inspection"],["ADI case study 292","symptom","flow at the water meter continued with the internal stopcock turned off"],["ADI case study 292","pipe material","copper"],["ADI case study 292","pipe material","MDPE"],["ADI case study 292","test result","internal cold mains passed a 2 bar pressure test over 15 minutes"],["ADI case study 292","test result","external cold mains failed a 2 bar pressure test over 5 minutes"],["ADI case study 292","test result","tracer gas gave a high reading in the courtyard next to a drain cover"],["ADI case study 292","leak location","conversion joint in the concrete courtyard"],["ADI case study 292","leak cause","poorly installed conversion joint from 15mm copper to 25mm MDPE"],["ADI case study 292","access made","excavation in the concrete courtyard"],["ADI case study 292","repair","faulty joint replaced with 25mm x 15mm transition coupling, 25mm MDPE coupling and pipe"],["ADI case study 292","outcome","repair passed a 4.2 bar pressure test over 10 minutes"],["ADI case study 292","outcome","no flow at the water meter on the final flow test"],["ADI case study 292","recommendation","monitor the meter for further excessive usage"]]},
{"id":291,"title":"internal cold mains leak in Cricklade (SN5 4)","summary":"ADI Leak Detection engineer Richard Poberezniuk investigated an internal cold mains leak in Cricklade, Wiltshire (SN5 4), using thermal imaging, tracer gas, a damp meter, an endoscope camera, pressure testing and visual inspection. Leak location: entry point of the hot and cold supplies to the external utility room. Work done: repair made with 2 15mm push fit couplings and a short piece of copper pipe. Outcome: final 15 minute pressure test passed.","triples":[["ADI case study 291","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 291","town","Cricklade"],["ADI case study 291","postcode sector","SN5 4"],["ADI case study 291","county","Wiltshire"],["ADI case study 291","country","England"],["ADI case study 291","leak type","Internal cold mains leak"],["ADI case study 291","service","Water Mains Leak Detection"],["ADI case study 291","service","Internal Leak Detection"],["ADI case study 291","engineer","Richard Poberezniuk"],["ADI case study 291","detection method","Thermal Imaging"],["ADI case study 291","detection method","Tracer Gas"],["ADI case study 291","detection method","Damp Meter"],["ADI case study 291","detection method","Endoscope Camera"],["ADI case study 291","detection method","Pressure Testing"],["ADI case study 291","detection method","Visual Inspection"],["ADI case study 291","symptom","noise of water heard in the external utility room"],["ADI case study 291","symptom","puddling outside the utility room"],["ADI case study 291","system affected","15mm cold supply"],["ADI case study 291","test result","internal cold mains failed a 4.5 bar pressure test over 5 minutes"],["ADI case study 291","test result","external cold mains passed a 4.5 bar pressure test over 20 minutes"],["ADI case study 291","leak location","entry point of the hot and cold supplies to the external utility room"],["ADI case study 291","leak location","further leak on the same pipe below the original repair in the concrete slab"],["ADI case study 291","leak cause","pinhole in the pipe"],["ADI case study 291","access made","excavation to expose the cold supply"],["ADI case study 291","access made","carousel unit dismantled and its floor cut away to reach the supplies"],["ADI case study 291","repair","repair made with 2 15mm push fit couplings and a short piece of copper pipe"],["ADI case study 291","repair","supplies isolated and capped as the pipe was substandard with no acid erosion protection"],["ADI case study 291","repair","capping done with 2 15mm push fit cap ends"],["ADI case study 291","outcome","final 15 minute pressure test passed"],["ADI case study 291","recommendation","dry out with dehumidifiers before reinstatement"]]},
{"id":290,"title":"central heating leak in Bollington (SK10 3)","summary":"ADI Leak Detection engineer Paul Hope investigated a central heating leak in Bollington, Cheshire (SK10 3), using thermal imaging, acoustic correlation, a damp meter, pressure testing, a ground microphone and acoustic listening. Leak location: tee joint in the pipework beneath the kitchen floor. Work done: pipes cut out and repaired with press fittings. Outcome: repair lost no pressure at 2 bar over 45 minutes.","triples":[["ADI case study 290","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 290","town","Bollington"],["ADI case study 290","postcode sector","SK10 3"],["ADI case study 290","county","Cheshire"],["ADI case study 290","country","England"],["ADI case study 290","leak type","Central heating leak"],["ADI case study 290","service","Central Heating Leak Detection"],["ADI case study 290","service","Heating Leak Detection"],["ADI case study 290","engineer","Paul Hope"],["ADI case study 290","detection method","Thermal Imaging"],["ADI case study 290","detection method","Acoustic Correlation"],["ADI case study 290","detection method","Damp Meter"],["ADI case study 290","detection method","Pressure Testing"],["ADI case study 290","detection method","Ground Microphone"],["ADI case study 290","detection method","Acoustic Listening"],["ADI case study 290","symptom","brand new combi boiler could not hold pressure"],["ADI case study 290","test result","thermal imaging showed a high temperature reading on the kitchen floor"],["ADI case study 290","test result","pressure dropped rapidly after 3 bar was fed in with the boiler isolated"],["ADI case study 290","test result","ground microphone gave a clear profile where the high temperature readings were"],["ADI case study 290","leak location","tee joint in the pipework beneath the kitchen floor"],["ADI case study 290","access made","leak area excavated by the customer"],["ADI case study 290","repair","pipes cut out and repaired with press fittings"],["ADI case study 290","outcome","repair lost no pressure at 2 bar over 45 minutes"],["ADI case study 290","outcome","system refilled, bled and heating turned on"],["ADI case study 290","recommendation","inhibitor needs adding to the system"]]},
{"id":289,"title":"internal cold mains leak in Derby (DE73 8)","summary":"ADI Leak Detection engineer Paul Hope investigated an internal cold mains leak in Derby, Derbyshire (DE73 8), using acoustic correlation, visual inspection, pressure testing and sectional isolation. Leak location: automatic urinal flush cistermiser in the gents toilet. Work done: valve feeding the urinal opened only very slightly to keep it working. Outcome: no pipe leaks indicated at this time.","triples":[["ADI case study 289","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 289","town","Derby"],["ADI case study 289","postcode sector","DE73 8"],["ADI case study 289","county","Derbyshire"],["ADI case study 289","country","England"],["ADI case study 289","leak type","Internal cold mains leak"],["ADI case study 289","service","Water Mains Leak Detection"],["ADI case study 289","service","Internal Leak Detection"],["ADI case study 289","engineer","Paul Hope"],["ADI case study 289","detection method","Acoustic Correlation"],["ADI case study 289","detection method","Visual Inspection"],["ADI case study 289","detection method","Pressure Testing"],["ADI case study 289","detection method","Sectional Isolation"],["ADI case study 289","symptom","external meter showing usage of around two and a half litres per minute"],["ADI case study 289","system affected","automatic urinal flush"],["ADI case study 289","test result","acoustic profile became strong in the gents toilet"],["ADI case study 289","test result","meter usage dropped to 3 litres per hour once the urinal flush was isolated"],["ADI case study 289","test result","3 bar held with no drop over the 45 minute test"],["ADI case study 289","leak location","automatic urinal flush cistermiser in the gents toilet"],["ADI case study 289","leak location","hot tap behind the bar with a constant drip"],["ADI case study 289","leak cause","automatic urinal flush stopped working and kept filling and flushing"],["ADI case study 289","repair","valve feeding the urinal opened only very slightly to keep it working"],["ADI case study 289","outcome","no pipe leaks indicated at this time"],["ADI case study 289","recommendation","replace or repair the cistermiser as soon as convenient"],["ADI case study 289","recommendation","repair all leaking taps"],["ADI case study 289","recommendation","basin waste in the first floor toilet found dripping onto the floor"]]},
{"id":288,"title":"underground mains leak in Wallasey (CH45 1)","summary":"ADI Leak Detection engineer Paul Hope investigated an underground mains leak in Wallasey, Merseyside (CH45 1), using acoustic correlation, thermal imaging, tracer gas, a damp meter and pressure testing. Leak location: in the back garden, where tracer gas was detected. Work done: damaged section of pipe removed and repaired. Outcome: no further loss of pressure on the day of testing.","triples":[["ADI case study 288","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 288","town","Wallasey"],["ADI case study 288","postcode sector","CH45 1"],["ADI case study 288","county","Merseyside"],["ADI case study 288","country","England"],["ADI case study 288","leak type","Underground mains leak"],["ADI case study 288","service","Water Mains Leak Detection"],["ADI case study 288","service","Underground Leak Detection"],["ADI case study 288","engineer","Paul Hope"],["ADI case study 288","detection method","Acoustic Correlation"],["ADI case study 288","detection method","Thermal Imaging"],["ADI case study 288","detection method","Tracer Gas"],["ADI case study 288","detection method","Damp Meter"],["ADI case study 288","detection method","Pressure Testing"],["ADI case study 288","property type","house"],["ADI case study 288","symptom","meter recording usage of 25 litres per hour"],["ADI case study 288","test result","strong leak profile at the stop cock in the downstairs bathroom"],["ADI case study 288","test result","maximum moisture levels on the dining room and bathroom walls"],["ADI case study 288","test result","pressure set to 3 bar dropped to 0 within 20 minutes"],["ADI case study 288","leak location","in the back garden, where tracer gas was detected"],["ADI case study 288","access made","ground excavated to expose the leaking pipe"],["ADI case study 288","repair","damaged section of pipe removed and repaired"],["ADI case study 288","repair","Philmac transitional coupling and stop end used to shut off the leak"],["ADI case study 288","outcome","no further loss of pressure on the day of testing"],["ADI case study 288","recommendation","appoint a specialist damp company to check the damp damage first"]]},
{"id":287,"title":"hot water system leak in Warwick (CV34 5)","summary":"ADI Leak Detection engineer Paul Hope investigated a hot water system leak in Warwick, Warwickshire (CV34 5), using acoustic correlation, thermal imaging, a damp meter, an endoscope camera, pressure testing and visual inspection. Leak location: condensate elbow in the boiler cupboard, dripping onto the hot water pipe. Work done: damaged sections of condensate pipe and hot water pipe cut out and replaced. Outcome: no drips from hot pipe repair under mains pressure over one hour.","triples":[["ADI case study 287","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 287","town","Warwick"],["ADI case study 287","postcode sector","CV34 5"],["ADI case study 287","county","Warwickshire"],["ADI case study 287","country","England"],["ADI case study 287","leak type","Hot water system leak"],["ADI case study 287","service","Hot Water Leak Detection"],["ADI case study 287","service","Internal Leak Detection"],["ADI case study 287","engineer","Paul Hope"],["ADI case study 287","detection method","Acoustic Correlation"],["ADI case study 287","detection method","Thermal Imaging"],["ADI case study 287","detection method","Damp Meter"],["ADI case study 287","detection method","Endoscope Camera"],["ADI case study 287","detection method","Pressure Testing"],["ADI case study 287","detection method","Visual Inspection"],["ADI case study 287","symptom","large patch on the kitchen ceiling"],["ADI case study 287","symptom","water trickling down the wall toward an electrical socket"],["ADI case study 287","system affected","condensate pipe"],["ADI case study 287","test result","meter showed no movement over 10 minutes"],["ADI case study 287","test result","ceiling patch reached only 24 degrees after 10 minutes of hot water running"],["ADI case study 287","test result","endoscope showed corrosion residue on a copper pipe next to the condensate elbow"],["ADI case study 287","leak location","condensate elbow in the boiler cupboard, dripping onto the hot water pipe"],["ADI case study 287","access made","part of the boiler cupboard floor lifted"],["ADI case study 287","repair","damaged sections of condensate pipe and hot water pipe cut out and replaced"],["ADI case study 287","repair","condensate pipe renewed with 45 degree fittings"],["ADI case study 287","repair","hot water pipe repaired with 15mm barrier pipe and fittings"],["ADI case study 287","outcome","no drips from hot pipe repair under mains pressure over one hour"],["ADI case study 287","recommendation","condensate pipe lacks a continuous fall and could cause future problems"]]},
{"id":286,"title":"internal cold mains leak in Stockport (SK7 3)","summary":"ADI Leak Detection engineer Paul Hope investigated an internal cold mains leak in Stockport, Greater Manchester (SK7 3), using acoustic correlation, pressure testing, a damp meter, visual inspection and sectional isolation. Leak location: in the back room near the bay window. Work done: damaged section sliced out and replaced. Outcome: repair held 2 bar for 45 minutes with no drop.","triples":[["ADI case study 286","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 286","town","Stockport"],["ADI case study 286","postcode sector","SK7 3"],["ADI case study 286","county","Greater Manchester"],["ADI case study 286","country","England"],["ADI case study 286","leak type","Internal cold mains leak"],["ADI case study 286","service","Water Mains Leak Detection"],["ADI case study 286","service","Internal Leak Detection"],["ADI case study 286","engineer","Paul Hope"],["ADI case study 286","detection method","Acoustic Correlation"],["ADI case study 286","detection method","Pressure Testing"],["ADI case study 286","detection method","Damp Meter"],["ADI case study 286","detection method","Visual Inspection"],["ADI case study 286","detection method","Sectional Isolation"],["ADI case study 286","property type","house"],["ADI case study 286","symptom","meter dial constantly spinning"],["ADI case study 286","symptom","water sitting under the floor in the crawl space"],["ADI case study 286","symptom","damp damage throughout, swollen doors and some electrical circuits not operating"],["ADI case study 286","test result","section from the hatch to the meter held 3 bar"],["ADI case study 286","test result","pressure began to drop on the pipe from the hatch into the house"],["ADI case study 286","test result","boiler pressure gauge showed pressure loss"],["ADI case study 286","leak location","in the back room near the bay window"],["ADI case study 286","leak cause","split connection fitting"],["ADI case study 286","access made","warped laminate removed in the bay area, revealing saturated floorboards and joists"],["ADI case study 286","repair","damaged section sliced out and replaced"],["ADI case study 286","repair","speed fit pipe and fittings used"],["ADI case study 286","outcome","repair held 2 bar for 45 minutes with no drop"],["ADI case study 286","outcome","system refilled, bled and turned on"],["ADI case study 286","recommendation","install a stopcock under the access hatch"],["ADI case study 286","recommendation","add inhibitor to the heating system when convenient"]]},
{"id":285,"title":"internal cold mains leak in Oldham (OL2 7)","summary":"ADI Leak Detection engineer Paul Hope investigated an internal cold mains leak in Oldham, Greater Manchester (OL2 7), using pressure testing, tracer gas, acoustic correlation and visual inspection. Leak location: beneath the internal stopcock. Work done: damaged section of pipework replaced with a new section of pipe. Outcome: no pressure drop at 5 bar over 60 minutes after the repair.","triples":[["ADI case study 285","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 285","town","Oldham"],["ADI case study 285","postcode sector","OL2 7"],["ADI case study 285","county","Greater Manchester"],["ADI case study 285","country","England"],["ADI case study 285","leak type","Internal cold mains leak"],["ADI case study 285","service","Water Mains Leak Detection"],["ADI case study 285","service","Internal Leak Detection"],["ADI case study 285","engineer","Paul Hope"],["ADI case study 285","detection method","Pressure Testing"],["ADI case study 285","detection method","Tracer Gas"],["ADI case study 285","detection method","Acoustic Correlation"],["ADI case study 285","detection method","Visual Inspection"],["ADI case study 285","symptom","1 litre used in just over six minutes with the internal stopcock closed"],["ADI case study 285","system affected","mains water supply"],["ADI case study 285","test result","pressure dropped from 3 bar to zero within two minutes"],["ADI case study 285","test result","tracer gas detected in front of the kitchen sink and nowhere else"],["ADI case study 285","leak location","beneath the internal stopcock"],["ADI case study 285","access made","washing machine moved and flooring lifted"],["ADI case study 285","access made","floorboards cut to expose the leak"],["ADI case study 285","repair","damaged section of pipework replaced with a new section of pipe"],["ADI case study 285","repair","transitional couplings and barrier pipe used"],["ADI case study 285","outcome","no pressure drop at 5 bar over 60 minutes after the repair"],["ADI case study 285","outcome","water supply reinstated and run through all outlets until clear"],["ADI case study 285","recommendation","have a certified joiner refit and finish the kitchen floorboards"]]},
{"id":284,"title":"underground mains leak in Cockermouth (CA13 9)","summary":"ADI Leak Detection engineer Paul Hope investigated an underground mains leak in Cockermouth, Cumbria (CA13 9), using acoustic correlation, tracer gas, pressure testing and visual inspection. Work done: failed connection coupling replaced. Outcome: no pressure drop at 4 bar over 45 minutes after the repair.","triples":[["ADI case study 284","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 284","town","Cockermouth"],["ADI case study 284","postcode sector","CA13 9"],["ADI case study 284","county","Cumbria"],["ADI case study 284","country","England"],["ADI case study 284","leak type","Underground mains leak"],["ADI case study 284","service","Water Mains Leak Detection"],["ADI case study 284","service","Underground Leak Detection"],["ADI case study 284","engineer","Paul Hope"],["ADI case study 284","detection method","Acoustic Correlation"],["ADI case study 284","detection method","Tracer Gas"],["ADI case study 284","detection method","Pressure Testing"],["ADI case study 284","detection method","Visual Inspection"],["ADI case study 284","symptom","water meter registering approximately 15 litres per minute with all internal stopcocks closed"],["ADI case study 284","symptom","no visible damp areas or damage"],["ADI case study 284","system affected","mains pipework"],["ADI case study 284","pipe material","copper"],["ADI case study 284","test result","no distinct leak profile on an acoustic survey of the driveway"],["ADI case study 284","test result","tracer gas pressure dropped from 3.5 bar to 3 bar after 10 minutes"],["ADI case study 284","test result","tracer gas at the water meter and along the pavement and property boundary line"],["ADI case study 284","leak cause","failed connection coupling"],["ADI case study 284","access made","pipe exposed and traced to the point of failure"],["ADI case study 284","repair","failed connection coupling replaced"],["ADI case study 284","repair","Philmac transitional coupling fitted"],["ADI case study 284","outcome","no pressure drop at 4 bar over 45 minutes after the repair"],["ADI case study 284","outcome","water supply reinstated and excavation backfilled"],["ADI case study 284","recommendation","consider replacing the copper mains pipework during any future driveway renovations"],["ADI case study 284","recommendation","review the building insurance policy for trace and access cover"]]},
{"id":283,"title":"central heating leak in Northallerton (HG4 1)","summary":"ADI Leak Detection engineer Paul Hope investigated a central heating leak in Northallerton, North Yorkshire (HG4 1), using thermal imaging, a damp meter, pressure testing, acoustic correlation and tracer gas. Leak location: at the external drain cock. Work done: section of 15mm copper pipe replaced with barrier pipe and couplers. Outcome: repair held 3 bar for 45 minutes with no further drop.","triples":[["ADI case study 283","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 283","town","Northallerton"],["ADI case study 283","postcode sector","HG4 1"],["ADI case study 283","county","North Yorkshire"],["ADI case study 283","country","England"],["ADI case study 283","leak type","Central heating leak"],["ADI case study 283","service","Central Heating Leak Detection"],["ADI case study 283","service","Heating Leak Detection"],["ADI case study 283","engineer","Paul Hope"],["ADI case study 283","detection method","Thermal Imaging"],["ADI case study 283","detection method","Damp Meter"],["ADI case study 283","detection method","Pressure Testing"],["ADI case study 283","detection method","Acoustic Correlation"],["ADI case study 283","detection method","Tracer Gas"],["ADI case study 283","pipe material","copper"],["ADI case study 283","test result","strongest leak noise on the external drain cock"],["ADI case study 283","test result","water below the drain cock at 30 degrees, suggesting a nearby leak"],["ADI case study 283","test result","gas at 2 bar detected at external drain cock and internally under corner unit"],["ADI case study 283","leak location","at the external drain cock"],["ADI case study 283","leak cause","pinholes in the pipe"],["ADI case study 283","access made","outside bricks removed and the area excavated"],["ADI case study 283","repair","section of 15mm copper pipe replaced with barrier pipe and couplers"],["ADI case study 283","repair","new brass drain cock installed"],["ADI case study 283","outcome","repair held 3 bar for 45 minutes with no further drop"],["ADI case study 283","outcome","system refilled, bled and turned on"],["ADI case study 283","recommendation","add an inhibitor to the heating system to help prevent future corrosion"]]},
{"id":282,"title":"internal cold mains leak in Liverpool (L12 8)","summary":"ADI Leak Detection engineer Paul Hope investigated an internal cold mains leak in Liverpool, Merseyside (L12 8), using acoustic correlation, acoustic listening, tracer gas, a damp meter, pressure testing and a ground microphone. Leak location: beneath the kitchen floor on the left-hand side. Work done: damaged section of pipe removed and replaced. Outcome: no pressure drop at 4 bar over 45 minutes after the repair.","triples":[["ADI case study 282","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 282","town","Liverpool"],["ADI case study 282","postcode sector","L12 8"],["ADI case study 282","county","Merseyside"],["ADI case study 282","country","England"],["ADI case study 282","leak type","Internal cold mains leak"],["ADI case study 282","service","Water Mains Leak Detection"],["ADI case study 282","service","Internal Leak Detection"],["ADI case study 282","engineer","Paul Hope"],["ADI case study 282","detection method","Acoustic Correlation"],["ADI case study 282","detection method","Acoustic Listening"],["ADI case study 282","detection method","Tracer Gas"],["ADI case study 282","detection method","Damp Meter"],["ADI case study 282","detection method","Pressure Testing"],["ADI case study 282","detection method","Ground Microphone"],["ADI case study 282","symptom","water meter showing continuous usage of 3 litres per hour"],["ADI case study 282","symptom","extensive moisture in kitchen walls, plinths, skirting, tiled floor and lounge dividing wall"],["ADI case study 282","test result","strong leak noise at the internal stopcock, no distinct profile on the floor"],["ADI case study 282","test result","pressure dropped from 3 bar to 2 bar over 20 minutes"],["ADI case study 282","test result","ground microphone with tracer gas identified sounds near the left-hand side of the kitchen"],["ADI case study 282","leak location","beneath the kitchen floor on the left-hand side"],["ADI case study 282","access made","kitchen floor excavated to expose the pipework"],["ADI case study 282","repair","damaged section of pipe removed and replaced"],["ADI case study 282","repair","transitional MDPE coupling with speed fit pipe and socket fitted"],["ADI case study 282","outcome","no pressure drop at 4 bar over 45 minutes after the repair"],["ADI case study 282","outcome","supply reinstated, outlets checked and water meter now stable"],["ADI case study 282","recommendation","use dehumidifiers to assist drying in the kitchen"]]},
{"id":281,"title":"hot water system leak in Hythe (SO45 2)","summary":"ADI Leak Detection engineer Mark Jones investigated a hot water system leak in Hythe, Hampshire (SO45 2), using acoustic correlation, thermal imaging, tracer gas, a damp meter, pressure testing, visual inspection and sectional isolation. Leak location: under the hall floorboards. Work done: section of three quarter inch copper pipe and failed fitting replaced with 22mm copper pipe. Outcome: system retested with no further leaks indicated.","triples":[["ADI case study 281","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 281","town","Hythe"],["ADI case study 281","postcode sector","SO45 2"],["ADI case study 281","county","Hampshire"],["ADI case study 281","country","England"],["ADI case study 281","leak type","Hot water system leak"],["ADI case study 281","service","Hot Water Leak Detection"],["ADI case study 281","service","Internal Leak Detection"],["ADI case study 281","engineer","Mark Jones"],["ADI case study 281","detection method","Acoustic Correlation"],["ADI case study 281","detection method","Thermal Imaging"],["ADI case study 281","detection method","Tracer Gas"],["ADI case study 281","detection method","Damp Meter"],["ADI case study 281","detection method","Pressure Testing"],["ADI case study 281","detection method","Visual Inspection"],["ADI case study 281","detection method","Sectional Isolation"],["ADI case study 281","property type","detached bungalow"],["ADI case study 281","symptom","extensive water damage to the kitchen floor and skirting boards"],["ADI case study 281","symptom","very high moisture content and high condensation levels on walls and windows"],["ADI case study 281","symptom","number of contractors tried to identify the moisture source, large kitchen floor section replaced"],["ADI case study 281","system affected","balanced pressure hot water system"],["ADI case study 281","system affected","22mm copper pipe supplying hot water to the kitchen and bathrooms"],["ADI case study 281","pipe material","copper"],["ADI case study 281","test result","meter test indicated a leak of approximately 30 litres per hour"],["ADI case study 281","test result","moisture testing showed extensive water damage to hall floor and adjacent living room floor"],["ADI case study 281","test result","strong acoustic signal on pipework through the airing cupboard into the inner hall void"],["ADI case study 281","leak location","under the hall floorboards"],["ADI case study 281","leak cause","failed fitting on 22mm copper pipe"],["ADI case study 281","access made","hall carpet lifted and saturated floorboards exposed"],["ADI case study 281","access made","four sections of floorboard lifted"],["ADI case study 281","repair","section of three quarter inch copper pipe and failed fitting replaced with 22mm copper pipe"],["ADI case study 281","repair","copper pipe section replaced using new to old couplings"],["ADI case study 281","outcome","system retested with no further leaks indicated"],["ADI case study 281","recommendation","replace the kitchen floor with marine ply"],["ADI case study 281","recommendation","dry or replace hall timber floorboards and joists"],["ADI case study 281","recommendation","replace hall pipe insulation only after floorboards and void are fully dried"]]},
{"id":280,"title":"central heating leak in Billingshurst (RH20 2)","summary":"ADI Leak Detection engineer Mark Jones investigated a central heating leak in Billingshurst, West Sussex (RH20 2), using acoustic correlation, thermal imaging, a damp meter and an endoscope camera. Leak location: beneath the floor at the threshold between the hallway and living room. Work done: small section of 22mm copper pipe and a T joint onto 15mm copper pipe replaced. Outcome: retested at 2.0 bar with no further leaks indicated.","triples":[["ADI case study 280","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 280","town","Billingshurst"],["ADI case study 280","postcode sector","RH20 2"],["ADI case study 280","county","West Sussex"],["ADI case study 280","country","England"],["ADI case study 280","leak type","Central heating leak"],["ADI case study 280","service","Central Heating Leak Detection"],["ADI case study 280","service","Heating Leak Detection"],["ADI case study 280","engineer","Mark Jones"],["ADI case study 280","detection method","Acoustic Correlation"],["ADI case study 280","detection method","Thermal Imaging"],["ADI case study 280","detection method","Damp Meter"],["ADI case study 280","detection method","Endoscope Camera"],["ADI case study 280","property type","large detached house over two floors"],["ADI case study 280","symptom","system kept running using the filling loop"],["ADI case study 280","symptom","very poor circulation with virtually no heat to ground floor radiators"],["ADI case study 280","symptom","water damage on floorboards and skirting boards on both sides of the door threshold"],["ADI case study 280","system affected","sealed heating system supplying 24 radiators"],["ADI case study 280","pipe material","copper"],["ADI case study 280","test result","strong acoustic signal at the hallway radiator under the staircase at 2.5 bar"],["ADI case study 280","test result","thermal hotspot adjacent to the living room door into the hallway"],["ADI case study 280","test result","moisture testing showed the floor and wall wet"],["ADI case study 280","leak location","beneath the floor at the threshold between the hallway and living room"],["ADI case study 280","leak cause","failed T joint"],["ADI case study 280","access made","small section of damaged floorboard cut away for an endoscope camera"],["ADI case study 280","access made","engineered wood flooring planks lifted and concrete screed excavated"],["ADI case study 280","repair","small section of 22mm copper pipe and a T joint onto 15mm copper pipe replaced"],["ADI case study 280","outcome","retested at 2.0 bar with no further leaks indicated"],["ADI case study 280","outcome","ground floor radiators failed to warm up after refilling and restarting"],["ADI case study 280","recommendation","replace the pressure relief valve"],["ADI case study 280","recommendation","investigate whether the boiler pump needs replacing"]]},
{"id":279,"title":"internal cold mains leak in Aylesbury (HP17 9)","summary":"ADI Leak Detection engineer Mark Jones investigated an internal cold mains leak in Aylesbury, Buckinghamshire (HP17 9), using acoustic correlation, a damp meter, an endoscope camera and flow metering. Leak location: in the screed floor at the utility room doorway area. Work done: short section of 15mm copper pipe replaced. Outcome: no movement on the meter during a 20 minute retest.","triples":[["ADI case study 279","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 279","town","Aylesbury"],["ADI case study 279","postcode sector","HP17 9"],["ADI case study 279","county","Buckinghamshire"],["ADI case study 279","country","England"],["ADI case study 279","leak type","Internal cold mains leak"],["ADI case study 279","service","Water Mains Leak Detection"],["ADI case study 279","service","Internal Leak Detection"],["ADI case study 279","engineer","Mark Jones"],["ADI case study 279","detection method","Acoustic Correlation"],["ADI case study 279","detection method","Damp Meter"],["ADI case study 279","detection method","Endoscope Camera"],["ADI case study 279","detection method","Flow Metering"],["ADI case study 279","property type","detached house over two floors"],["ADI case study 279","symptom","strong acoustic signal by the internal stopcock in the utility room"],["ADI case study 279","system affected","15mm copper pipe embedded in screed"],["ADI case study 279","pipe material","copper"],["ADI case study 279","test result","initial meter test showed a leak rate of 18 litres per minute"],["ADI case study 279","test result","stopcock on 15mm copper pipe, original location moved when rear extension built"],["ADI case study 279","test result","strong acoustic signal at the current door to the utility room"],["ADI case study 279","leak location","in the screed floor at the utility room doorway area"],["ADI case study 279","access made","vinyl flooring tiles and screed excavated"],["ADI case study 279","repair","short section of 15mm copper pipe replaced"],["ADI case study 279","outcome","no movement on the meter during a 20 minute retest"],["ADI case study 279","recommendation","dry the floor to prevent further damage to embedded copper pipes in the screed"]]},
{"id":278,"title":"internal cold mains leak in Southampton (SO53 1)","summary":"ADI Leak Detection engineer Mark Jones investigated an internal cold mains leak in Southampton, Hampshire (SO53 1), using acoustic correlation, thermal imaging, tracer gas, a damp meter and pressure testing. Leak location: behind the shower and basin waste pipes within the wall.","triples":[["ADI case study 278","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 278","town","Southampton"],["ADI case study 278","postcode sector","SO53 1"],["ADI case study 278","county","Hampshire"],["ADI case study 278","country","England"],["ADI case study 278","leak type","Internal cold mains leak"],["ADI case study 278","service","Water Mains Leak Detection"],["ADI case study 278","service","Internal Leak Detection"],["ADI case study 278","engineer","Mark Jones"],["ADI case study 278","detection method","Acoustic Correlation"],["ADI case study 278","detection method","Thermal Imaging"],["ADI case study 278","detection method","Tracer Gas"],["ADI case study 278","detection method","Damp Meter"],["ADI case study 278","detection method","Pressure Testing"],["ADI case study 278","property type","detached house over two floors"],["ADI case study 278","symptom","water damage to living room and cloakroom ceilings, stairwell wall and en-suite shower room wall"],["ADI case study 278","symptom","constant flow of water down the living room wall when the water was on"],["ADI case study 278","system affected","15mm copper pipe"],["ADI case study 278","pipe material","copper"],["ADI case study 278","test result","leak rate of approximately 10 litres per hour with incoming pressure of 7.0 bar"],["ADI case study 278","test result","acoustic signal and tracer gas detected below the en-suite basin"],["ADI case study 278","test result","thermal imaging showed pipes embedded in the wall"],["ADI case study 278","leak location","behind the shower and basin waste pipes within the wall"],["ADI case study 278","access made","ceramic tiles removed and very thick plaster broken open"],["ADI case study 278","access made","waste pipes cut out to reach the leaking pipe"]]},
{"id":277,"title":"underground water mains leak in Addlestone (KT16 0)","summary":"ADI Leak Detection engineer Mark Jones investigated an underground water mains leak in Addlestone, Surrey (KT16 0), using acoustic correlation, pressure testing, sectional isolation and visual inspection. Leak location: failed pipework in the middle of a redundant site. Work done: failed pipework on the redundant site cut off. Outcome: good flow and water pressure achieved on retest.","triples":[["ADI case study 277","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 277","town","Addlestone"],["ADI case study 277","postcode sector","KT16 0"],["ADI case study 277","county","Surrey"],["ADI case study 277","country","England"],["ADI case study 277","leak type","Underground water mains leak"],["ADI case study 277","service","Water Mains Leak Detection"],["ADI case study 277","service","Underground Leak Detection"],["ADI case study 277","engineer","Mark Jones"],["ADI case study 277","detection method","Acoustic Correlation"],["ADI case study 277","detection method","Pressure Testing"],["ADI case study 277","detection method","Sectional Isolation"],["ADI case study 277","detection method","Visual Inspection"],["ADI case study 277","property type","large park home site with up to 150 buildings"],["ADI case study 277","symptom","failure of the supply to the pumped system"],["ADI case study 277","symptom","two of three booster pumps running continuously, unable to achieve a head of pressure"],["ADI case study 277","symptom","indications of air passing through the pumps"],["ADI case study 277","system affected","pipework to the system expansion vessel"],["ADI case study 277","pipe material","copper"],["ADI case study 277","test result","mains pressure approximately 2.5 bar with a low flow rate"],["ADI case study 277","test result","isolation testing of the pump supply indicated a significant leak"],["ADI case study 277","test result","leak rate of approximately 200 to 500 litres per hour"],["ADI case study 277","leak location","failed pipework in the middle of a redundant site"],["ADI case study 277","access made","failed pipework exposed"],["ADI case study 277","repair","failed pipework on the redundant site cut off"],["ADI case study 277","repair","2 fittings remade on the copper pipework to the expansion vessel"],["ADI case study 277","repair","temporary repair made to the expansion vessel pipework"],["ADI case study 277","outcome","good flow and water pressure achieved on retest"],["ADI case study 277","outcome","leak on the expansion vessel pipework became much larger under pressure"],["ADI case study 277","recommendation","replace copper pipe at the leak location with external mains type pipework and fittings"],["ADI case study 277","recommendation","renew the copper pipe connection to the system expansion vessel"]]},
{"id":276,"title":"underground water mains leak in Daventry (NN11 3)","summary":"ADI Leak Detection engineer Mark Jones investigated an underground water mains leak in Daventry, Northamptonshire (NN11 3), using tracer gas, acoustic correlation, visual inspection and sectional isolation. Leak location: under the building directly adjacent to the exterior wall. Work done: MDPE blue water main replaced from inside the back kitchen to the exterior wall.","triples":[["ADI case study 276","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 276","town","Daventry"],["ADI case study 276","postcode sector","NN11 3"],["ADI case study 276","county","Northamptonshire"],["ADI case study 276","country","England"],["ADI case study 276","leak type","Underground water mains leak"],["ADI case study 276","service","Water Mains Leak Detection"],["ADI case study 276","service","Underground Leak Detection"],["ADI case study 276","engineer","Mark Jones"],["ADI case study 276","detection method","Tracer Gas"],["ADI case study 276","detection method","Acoustic Correlation"],["ADI case study 276","detection method","Visual Inspection"],["ADI case study 276","detection method","Sectional Isolation"],["ADI case study 276","property type","large detached house over three floors plus a cellar"],["ADI case study 276","system affected","25mm blue MDPE water pipe"],["ADI case study 276","system affected","metered water supply running approximately 180 metres from the property boundary"],["ADI case study 276","pipe material","MDPE"],["ADI case study 276","test result","tracer gas at 6.0 bar reached the leak point in five minutes 20 seconds"],["ADI case study 276","test result","50 litres per hour at 5.5 bar, leak concluded to be close to the property"],["ADI case study 276","test result","gas traces outside the back wall of the back kitchen after approximately one hour"],["ADI case study 276","leak location","under the building directly adjacent to the exterior wall"],["ADI case study 276","access made","gravel path excavated to expose the services entering the building"],["ADI case study 276","repair","MDPE blue water main replaced from inside the back kitchen to the exterior wall"],["ADI case study 276","repair","new pipe section through concrete screed, reconnected to remove the joint under the building"],["ADI case study 276","recommendation","contact the water company to arrange a leak allowance"]]},
{"id":275,"title":"underground water mains leak in Bexleyheath (DA5 2)","summary":"ADI Leak Detection engineer Mark Jones investigated an underground water mains leak in Bexleyheath, Greater London (DA5 2), using acoustic correlation, tracer gas, pressure testing, flow metering and visual inspection. Leak location: in the lawn adjacent to the property boundary where tracer gas was detected. Work done: lead pipe replaced up to the boundary with 20mm MDPE blue pipe. Outcome: retest indicated a further leak on the pipe outside the property.","triples":[["ADI case study 275","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 275","town","Bexleyheath"],["ADI case study 275","postcode sector","DA5 2"],["ADI case study 275","county","Greater London"],["ADI case study 275","country","England"],["ADI case study 275","leak type","Underground water mains leak"],["ADI case study 275","service","Water Mains Leak Detection"],["ADI case study 275","service","Underground Leak Detection"],["ADI case study 275","engineer","Mark Jones"],["ADI case study 275","detection method","Acoustic Correlation"],["ADI case study 275","detection method","Tracer Gas"],["ADI case study 275","detection method","Pressure Testing"],["ADI case study 275","detection method","Flow Metering"],["ADI case study 275","detection method","Visual Inspection"],["ADI case study 275","property type","detached house over two floors"],["ADI case study 275","symptom","leak of 22 litres per hour reported by the water company"],["ADI case study 275","symptom","excess water near the water meter and boundary, rest of pavement dry"],["ADI case study 275","system affected","lead water pipe running under the boundary wall"],["ADI case study 275","pipe material","lead"],["ADI case study 275","test result","meter test showed a leak rate of 60 litres per hour on arrival"],["ADI case study 275","test result","hydrogen tracing gas reached the leak area after 5 minutes"],["ADI case study 275","leak location","in the lawn adjacent to the property boundary where tracer gas was detected"],["ADI case study 275","access made","area excavated to expose the water pipe"],["ADI case study 275","repair","lead pipe replaced up to the boundary with 20mm MDPE blue pipe"],["ADI case study 275","repair","two universal transition couplings used"],["ADI case study 275","outcome","retest indicated a further leak on the pipe outside the property"],["ADI case study 275","recommendation","contact the water company to repair the leak outside the property"]]},
{"id":274,"title":"central heating leak in Burnham (SL1 7)","summary":"ADI Leak Detection engineer Mark Jones investigated a central heating leak in Burnham, Berkshire (SL1 7), using thermal imaging, tracer gas, a damp meter and pressure testing. Leak location: in the screed floor beneath the kitchen. Work done: short section of three quarter inch copper pipe replaced with 22mm copper pipe. Outcome: retested at 2.0 bar with no further leaks indicated.","triples":[["ADI case study 274","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 274","town","Burnham"],["ADI case study 274","postcode sector","SL1 7"],["ADI case study 274","county","Berkshire"],["ADI case study 274","country","England"],["ADI case study 274","leak type","Central heating leak"],["ADI case study 274","service","Central Heating Leak Detection"],["ADI case study 274","service","Heating Leak Detection"],["ADI case study 274","engineer","Mark Jones"],["ADI case study 274","detection method","Thermal Imaging"],["ADI case study 274","detection method","Tracer Gas"],["ADI case study 274","detection method","Damp Meter"],["ADI case study 274","detection method","Pressure Testing"],["ADI case study 274","property type","detached house over two floors"],["ADI case study 274","system affected","three quarter inch copper pipe"],["ADI case study 274","pipe material","copper"],["ADI case study 274","test result","strong gas signal under the kitchen floor after approximately 10 minutes"],["ADI case study 274","test result","no further leaks elsewhere in the house after approximately 40 minutes"],["ADI case study 274","test result","retained heat spot and very slight moisture increase in the leak area"],["ADI case study 274","leak location","in the screed floor beneath the kitchen"],["ADI case study 274","access made","laminate tiles, several skirting board sections and floor screed taken up"],["ADI case study 274","repair","short section of three quarter inch copper pipe replaced with 22mm copper pipe"],["ADI case study 274","repair","two new to old copper fittings and a slip coupling used"],["ADI case study 274","outcome","retested at 2.0 bar with no further leaks indicated"],["ADI case study 274","outcome","inhibitor reinstated, system refilled and run approximately 30 minutes without leaks or faults"],["ADI case study 274","recommendation","isolated auto air vent in the boiler may need replacing"]]},
{"id":273,"title":"hot water system leak in Newbury (RG14 6)","summary":"ADI Leak Detection engineer Mark Jones investigated a hot water system leak in Newbury, Berkshire (RG14 6), using thermal imaging, acoustic correlation, tracer gas, a damp meter, an endoscope camera, visual inspection and pressure testing. Leak location: in a pipe duct behind the kitchen cupboard back. Work done: small section of 22mm copper pipe and an elbow joint replaced.","triples":[["ADI case study 273","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 273","town","Newbury"],["ADI case study 273","postcode sector","RG14 6"],["ADI case study 273","county","Berkshire"],["ADI case study 273","country","England"],["ADI case study 273","leak type","Hot water system leak"],["ADI case study 273","service","Hot Water Leak Detection"],["ADI case study 273","service","Internal Leak Detection"],["ADI case study 273","engineer","Mark Jones"],["ADI case study 273","detection method","Thermal Imaging"],["ADI case study 273","detection method","Acoustic Correlation"],["ADI case study 273","detection method","Tracer Gas"],["ADI case study 273","detection method","Damp Meter"],["ADI case study 273","detection method","Endoscope Camera"],["ADI case study 273","detection method","Visual Inspection"],["ADI case study 273","detection method","Pressure Testing"],["ADI case study 273","property type","link detached house over three floors"],["ADI case study 273","symptom","heating system pressure very high despite infrequent topping up"],["ADI case study 273","symptom","corner kitchen unit base wet"],["ADI case study 273","symptom","staining and mould running down the wall from the cupboard base level"],["ADI case study 273","system affected","hot feed to the kitchen"],["ADI case study 273","pipe material","copper"],["ADI case study 273","test result","let by test on the filling loop showed no faults"],["ADI case study 273","test result","moisture testing showed the whole cupboard base saturated"],["ADI case study 273","test result","slightly elevated floor moisture readings over approximately 2 square metres"],["ADI case study 273","leak location","in a pipe duct behind the kitchen cupboard back"],["ADI case study 273","access made","section of the cupboard back cut out"],["ADI case study 273","repair","small section of 22mm copper pipe and an elbow joint replaced"],["ADI case study 273","recommendation","replace the base of the kitchen cupboard"],["ADI case study 273","recommendation","check the expansion vessel on the heating system"]]},
{"id":272,"title":"underfloor heating leak in Burnham-on-Crouch (CM3 1)","summary":"ADI Leak Detection engineer Mark Jones investigated an underfloor heating leak in Burnham-on-Crouch, Essex (CM3 1), using acoustic correlation, thermal imaging, tracer gas, a damp meter, pressure testing and flow metering. Leak location: under the kitchen floor at the threshold to the back hall. Work done: small section of 15mm copper pipe replaced. Outcome: system retested with no further leaks indicated.","triples":[["ADI case study 272","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 272","town","Burnham-on-Crouch"],["ADI case study 272","postcode sector","CM3 1"],["ADI case study 272","county","Essex"],["ADI case study 272","country","England"],["ADI case study 272","leak type","Underfloor heating leak"],["ADI case study 272","service","Underfloor Heating Leak Detection"],["ADI case study 272","service","Heating Leak Detection"],["ADI case study 272","engineer","Mark Jones"],["ADI case study 272","detection method","Acoustic Correlation"],["ADI case study 272","detection method","Thermal Imaging"],["ADI case study 272","detection method","Tracer Gas"],["ADI case study 272","detection method","Damp Meter"],["ADI case study 272","detection method","Pressure Testing"],["ADI case study 272","detection method","Flow Metering"],["ADI case study 272","property type","large detached house over two floors"],["ADI case study 272","symptom","water damage to skirting boards and door surrounds and discoloured tile grout"],["ADI case study 272","symptom","salts coming out of the concrete screed in the underfloor heating manifold cupboard"],["ADI case study 272","symptom","section of concrete block paving collapsed just inside the gate"],["ADI case study 272","system affected","water softener bypass supply to the kitchen"],["ADI case study 272","pipe material","copper"],["ADI case study 272","test result","initial meter test showed a leak rate of 80 to 150 litres per hour"],["ADI case study 272","leak location","under the kitchen floor at the threshold to the back hall"],["ADI case study 272","access made","ceramic tiles and floor screed excavated"],["ADI case study 272","repair","small section of 15mm copper pipe replaced"],["ADI case study 272","outcome","system retested with no further leaks indicated"],["ADI case study 272","outcome","pipes noted as discoloured"],["ADI case study 272","recommendation","dry the floor as soon as possible to reduce damage risk to embedded pipes"],["ADI case study 272","recommendation","monitor water use during restoration until the floor is fully dry"]]},
{"id":271,"title":"underground water mains leak in Hounslow (TW2 6)","summary":"ADI Leak Detection engineer Mark Pavitt investigated an underground water mains leak in Hounslow, Greater London (TW2 6), using acoustic correlation, a damp meter, pressure testing and visual inspection. Leak location: under the kitchen floor. Work done: section of failed 15mm copper mains supply renewed. Outcome: passed a retest at 4.0 bar of compressed air over one hour.","triples":[["ADI case study 271","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 271","town","Hounslow"],["ADI case study 271","postcode sector","TW2 6"],["ADI case study 271","county","Greater London"],["ADI case study 271","country","England"],["ADI case study 271","leak type","Underground water mains leak"],["ADI case study 271","service","Water Mains Leak Detection"],["ADI case study 271","service","Underground Leak Detection"],["ADI case study 271","engineer","Mark Pavitt"],["ADI case study 271","detection method","Acoustic Correlation"],["ADI case study 271","detection method","Damp Meter"],["ADI case study 271","detection method","Pressure Testing"],["ADI case study 271","detection method","Visual Inspection"],["ADI case study 271","symptom","noise on the water main with no water in use"],["ADI case study 271","symptom","leak evidence and damage on the kitchen walls and floor"],["ADI case study 271","system affected","15mm copper mains supply pipe"],["ADI case study 271","pipe material","copper"],["ADI case study 271","test result","acoustic irregularity beneath the floor between the kitchen and dining room"],["ADI case study 271","test result","immediate pressure drop and further sound irregularities from the same floor area"],["ADI case study 271","test result","maximum damp meter readings throughout all affected areas"],["ADI case study 271","leak location","under the kitchen floor"],["ADI case study 271","leak location","beneath the floor between the kitchen and dining room"],["ADI case study 271","access made","wooden flooring and screed removed"],["ADI case study 271","repair","section of failed 15mm copper mains supply renewed"],["ADI case study 271","outcome","passed a retest at 4.0 bar of compressed air over one hour"],["ADI case study 271","recommendation","forward the report to the insurance company to arrange remedial works"]]},
{"id":270,"title":"central heating leak in Bracknell (SL5 8)","summary":"ADI Leak Detection engineer Mark Pavitt investigated a central heating leak in Bracknell, Berkshire (SL5 8), using acoustic correlation, pressure testing, a damp meter and visual inspection. Leak location: under the dining room floor. Work done: damaged section of 15mm heating pipework renewed. Outcome: heating system pressure reinstated.","triples":[["ADI case study 270","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 270","town","Bracknell"],["ADI case study 270","postcode sector","SL5 8"],["ADI case study 270","county","Berkshire"],["ADI case study 270","country","England"],["ADI case study 270","leak type","Central heating leak"],["ADI case study 270","service","Central Heating Leak Detection"],["ADI case study 270","service","Heating Leak Detection"],["ADI case study 270","engineer","Mark Pavitt"],["ADI case study 270","detection method","Acoustic Correlation"],["ADI case study 270","detection method","Pressure Testing"],["ADI case study 270","detection method","Damp Meter"],["ADI case study 270","detection method","Visual Inspection"],["ADI case study 270","symptom","complete loss of pressure in the heating system"],["ADI case study 270","system affected","15mm copper heating pipe"],["ADI case study 270","pipe material","copper"],["ADI case study 270","test result","acoustic irregularity beneath a radiator in the dining room"],["ADI case study 270","test result","further acoustic test found sound irregularities beneath the left-hand dining room radiator"],["ADI case study 270","test result","no pressure drop on retest at 4.0 bar of compressed air"],["ADI case study 270","leak location","under the dining room floor"],["ADI case study 270","leak location","beneath the left-hand radiator in the dining room"],["ADI case study 270","access made","carpet and an area of screed removed"],["ADI case study 270","repair","damaged section of 15mm heating pipework renewed"],["ADI case study 270","repair","pipework lagged"],["ADI case study 270","outcome","heating system pressure reinstated"],["ADI case study 270","recommendation","let the affected area dry fully before any reinstatement works"]]},
{"id":269,"title":"central heating leak in Chipping Ongar (CM16 7)","summary":"ADI Leak Detection engineer Mark Pavitt investigated a central heating leak in Chipping Ongar, Essex (CM16 7), using acoustic correlation, thermal imaging, pressure testing and visual inspection. Leak location: beneath the kitchen floor under the boiler and kitchen units. Work done: section of failed 22mm plastic heating pipework renewed. Outcome: system refilled, vented and passed a heat cycle.","triples":[["ADI case study 269","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 269","town","Chipping Ongar"],["ADI case study 269","postcode sector","CM16 7"],["ADI case study 269","county","Essex"],["ADI case study 269","country","England"],["ADI case study 269","leak type","Central heating leak"],["ADI case study 269","service","Central Heating Leak Detection"],["ADI case study 269","service","Heating Leak Detection"],["ADI case study 269","engineer","Mark Pavitt"],["ADI case study 269","detection method","Acoustic Correlation"],["ADI case study 269","detection method","Thermal Imaging"],["ADI case study 269","detection method","Pressure Testing"],["ADI case study 269","detection method","Visual Inspection"],["ADI case study 269","symptom","heating system holding no pressure at all"],["ADI case study 269","system affected","22mm heating pipe from the boiler"],["ADI case study 269","pipe material","plastic"],["ADI case study 269","test result","slight acoustic irregularity under the boiler area and kitchen units"],["ADI case study 269","test result","immediate pressure drop and loud sound irregularities under the boiler and kitchen units"],["ADI case study 269","test result","no pressure drop at 4.0 bar of compressed air over 30 minutes on completion"],["ADI case study 269","leak location","beneath the kitchen floor under the boiler and kitchen units"],["ADI case study 269","leak cause","split along a straight length of 22mm plastic heating pipe"],["ADI case study 269","access made","plinth below the kitchen units removed"],["ADI case study 269","access made","dishwasher and an area of screed removed"],["ADI case study 269","repair","section of failed 22mm plastic heating pipework renewed"],["ADI case study 269","outcome","system refilled, vented and passed a heat cycle"],["ADI case study 269","recommendation","contact the insurance company for wall and floor repairs and professional drying"]]},
{"id":268,"title":"internal cold mains leak in Lewes (BN10 7)","summary":"ADI Leak Detection engineer Mark Pavitt investigated an internal cold mains leak in Lewes, East Sussex (BN10 7), using acoustic correlation, thermal imaging, a damp meter, visual inspection and pressure testing. Leak location: under the closet WC and hallway floor. Work done: section of failed 15mm copper mains supply renewed. Outcome: tested on completion and all passed.","triples":[["ADI case study 268","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 268","town","Lewes"],["ADI case study 268","postcode sector","BN10 7"],["ADI case study 268","county","East Sussex"],["ADI case study 268","country","England"],["ADI case study 268","leak type","Internal cold mains leak"],["ADI case study 268","service","Water Mains Leak Detection"],["ADI case study 268","service","Internal Leak Detection"],["ADI case study 268","engineer","Mark Pavitt"],["ADI case study 268","detection method","Acoustic Correlation"],["ADI case study 268","detection method","Thermal Imaging"],["ADI case study 268","detection method","Damp Meter"],["ADI case study 268","detection method","Visual Inspection"],["ADI case study 268","detection method","Pressure Testing"],["ADI case study 268","symptom","leak evidence rising through the closet WC floor"],["ADI case study 268","symptom","leak damage on walls, woodwork and flooring in the closet WC and hallway"],["ADI case study 268","system affected","15mm copper mains supply"],["ADI case study 268","pipe material","copper"],["ADI case study 268","test result","water rising through tiled floor between hallway and closet WC once mains reinstated"],["ADI case study 268","test result","acoustic irregularity from the area where water was rising"],["ADI case study 268","test result","thermal mass from the failed mains supply pooling around localised heating pipework"],["ADI case study 268","leak location","under the closet WC and hallway floor"],["ADI case study 268","leak location","under the central heating pipework"],["ADI case study 268","access made","tiles and screed removed"],["ADI case study 268","repair","section of failed 15mm copper mains supply renewed"],["ADI case study 268","outcome","tested on completion and all passed"],["ADI case study 268","recommendation","contact the insurance company to arrange remedial works and professional drying"]]},
{"id":267,"title":"hot water system leak in Poplar (E15 2)","summary":"ADI Leak Detection engineer Mark Pavitt investigated a hot water system leak in Poplar, Greater London (E15 2), using acoustic listening, thermal imaging, a damp meter, pressure testing, visual inspection and sectional isolation. Leak location: in the screed under the dishwasher and sink unit. Work done: section of failed 15mm copper hot supply renewed. Outcome: held 4.0 bar over one hour on completion, passed at the time of testing.","triples":[["ADI case study 267","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 267","town","Poplar"],["ADI case study 267","postcode sector","E15 2"],["ADI case study 267","county","Greater London"],["ADI case study 267","country","England"],["ADI case study 267","leak type","Hot water system leak"],["ADI case study 267","service","Hot Water Leak Detection"],["ADI case study 267","service","Internal Leak Detection"],["ADI case study 267","engineer","Mark Pavitt"],["ADI case study 267","detection method","Acoustic Listening"],["ADI case study 267","detection method","Thermal Imaging"],["ADI case study 267","detection method","Damp Meter"],["ADI case study 267","detection method","Pressure Testing"],["ADI case study 267","detection method","Visual Inspection"],["ADI case study 267","detection method","Sectional Isolation"],["ADI case study 267","symptom","leak damage throughout the kitchen area and bathroom"],["ADI case study 267","symptom","noise on the mains supply to the combi boiler"],["ADI case study 267","symptom","mains supply into the combi boiler flowing with no hot water in use"],["ADI case study 267","system affected","15mm copper hot supply"],["ADI case study 267","pipe material","copper"],["ADI case study 267","test result","maximum damp meter readings on flooring and walls throughout kitchen and bathroom"],["ADI case study 267","test result","isolating the boiler mains supply stopped the noise, proving a hot supply leak"],["ADI case study 267","test result","thermal irregularity under the sink unit and behind the dishwasher"],["ADI case study 267","leak location","in the screed under the dishwasher and sink unit"],["ADI case study 267","leak cause","perforation on the underside of the copper hot supply"],["ADI case study 267","access made","dishwasher removed and screed excavated above the thermal irregularity"],["ADI case study 267","repair","section of failed 15mm copper hot supply renewed"],["ADI case study 267","outcome","held 4.0 bar over one hour on completion, passed at the time of testing"],["ADI case study 267","recommendation","contact the insurers to arrange remedial works including professional drying"]]},
{"id":266,"title":"internal cold mains leak in Wandsworth (SW19 3)","summary":"ADI Leak Detection engineer Mark Pavitt investigated an internal cold mains leak in Wandsworth, Greater London (SW19 3), using acoustic correlation, tracer gas, a damp meter, pressure testing, visual inspection and sectional isolation. Leak location: inside boxing to the left hand side of the WC. Work done: failed 15mm pushfit elbow repaired. Outcome: repaired mains supply held 4.0 bar of tracer gas over one hour with no drop.","triples":[["ADI case study 266","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 266","town","Wandsworth"],["ADI case study 266","postcode sector","SW19 3"],["ADI case study 266","county","Greater London"],["ADI case study 266","country","England"],["ADI case study 266","leak type","Internal cold mains leak"],["ADI case study 266","service","Water Mains Leak Detection"],["ADI case study 266","service","Internal Leak Detection"],["ADI case study 266","engineer","Mark Pavitt"],["ADI case study 266","detection method","Acoustic Correlation"],["ADI case study 266","detection method","Tracer Gas"],["ADI case study 266","detection method","Damp Meter"],["ADI case study 266","detection method","Pressure Testing"],["ADI case study 266","detection method","Visual Inspection"],["ADI case study 266","detection method","Sectional Isolation"],["ADI case study 266","symptom","severe leak damage throughout the garden room/gym"],["ADI case study 266","symptom","all walls and flooring saturated in the garden room/gym and integral bathroom"],["ADI case study 266","system affected","mains supply"],["ADI case study 266","test result","maximum damp meter readings throughout all areas"],["ADI case study 266","test result","no pressure drop on the hot supply at 4.0 bar over one hour"],["ADI case study 266","test result","gradual pressure drop on the mains supply at 4.0 bar over one hour"],["ADI case study 266","leak location","inside boxing to the left hand side of the WC"],["ADI case study 266","leak cause","failed 15mm pushfit elbow"],["ADI case study 266","access made","boxing to the left hand side of the WC removed"],["ADI case study 266","repair","failed 15mm pushfit elbow repaired"],["ADI case study 266","outcome","repaired mains supply held 4.0 bar of tracer gas over one hour with no drop"],["ADI case study 266","recommendation","contact the insurance company with the report for remedial works and professional drying"],["ADI case study 266","recommendation","further investigation through insurance of high level bathroom damp possibly from the roof"]]},
{"id":265,"title":"underground water mains leak in Maidstone (ME8 0)","summary":"ADI Leak Detection engineer Mark Pavitt investigated an underground water mains leak in Maidstone, Kent (ME8 0), using tracer gas, acoustic correlation and pressure testing. Leak location: outside the plant room. Work done: new 25mm blue poly supply run from the plant room into the excavation. Outcome: excavation backfilled and mains supply reinstated.","triples":[["ADI case study 265","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 265","town","Maidstone"],["ADI case study 265","postcode sector","ME8 0"],["ADI case study 265","county","Kent"],["ADI case study 265","country","England"],["ADI case study 265","leak type","Underground water mains leak"],["ADI case study 265","service","Water Mains Leak Detection"],["ADI case study 265","service","Underground Leak Detection"],["ADI case study 265","engineer","Mark Pavitt"],["ADI case study 265","detection method","Tracer Gas"],["ADI case study 265","detection method","Acoustic Correlation"],["ADI case study 265","detection method","Pressure Testing"],["ADI case study 265","system affected","25mm incoming mains supply"],["ADI case study 265","pipe material","black alkathene"],["ADI case study 265","test result","passed a 4.0 bar tracer gas test over one hour on completion"],["ADI case study 265","leak location","outside the plant room"],["ADI case study 265","access made","metal high level boundary fencing removed for 1.5 ton digger access"],["ADI case study 265","access made","excavated around eight 50mm electric cables to 1.8 metres deep, six feet across"],["ADI case study 265","repair","new 25mm blue poly supply run from the plant room into the excavation"],["ADI case study 265","repair","new riser connected externally to the incoming supply and internally to the internal supply"],["ADI case study 265","outcome","excavation backfilled and mains supply reinstated"],["ADI case study 265","recommendation","send the report to the water provider"]]},
{"id":264,"title":"underground water mains leak in Teddington","summary":"ADI Leak Detection engineer Mark Pavitt investigated an underground water mains leak in Teddington, using acoustic correlation, tracer gas, a ground microphone and pressure testing. Work done: new 20mm blue poly mains riser run to the newly installed stopcock. Outcome: mains supply passed the completion test with no drop in pressure.","triples":[["ADI case study 264","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 264","town","Teddington"],["ADI case study 264","country","England"],["ADI case study 264","leak type","Underground water mains leak"],["ADI case study 264","service","Water Mains Leak Detection"],["ADI case study 264","service","Underground Leak Detection"],["ADI case study 264","engineer","Mark Pavitt"],["ADI case study 264","detection method","Acoustic Correlation"],["ADI case study 264","detection method","Tracer Gas"],["ADI case study 264","detection method","Ground Microphone"],["ADI case study 264","detection method","Pressure Testing"],["ADI case study 264","system affected","incoming mains supply"],["ADI case study 264","test result","tracing cable ran only to the kitchen wall edge, approximately three feet from party wall"],["ADI case study 264","test result","ground penetrating radar showed the supply angling sharply under the electrical consumer unit"],["ADI case study 264","test result","no drop in pressure at 4.0 bar of compressed air on completion"],["ADI case study 264","access made","laminate flooring and screed removed"],["ADI case study 264","access made","screed removed below the consumer unit and area excavated approximately 1 metre deep"],["ADI case study 264","repair","new 20mm blue poly mains riser run to the newly installed stopcock"],["ADI case study 264","repair","connected into the existing 20mm black poly supply in front of the external wall"],["ADI case study 264","outcome","mains supply passed the completion test with no drop in pressure"],["ADI case study 264","recommendation","send the report to the insurers"]]},
{"id":263,"title":"underground water mains leak in Plymouth (PL4 8)","summary":"ADI Leak Detection engineer Mark Pavitt investigated an underground water mains leak in Plymouth, Devon (PL4 8), using acoustic correlation, tracer gas, a damp meter and pressure testing. Leak location: on the lead mains riser between the closet WC and the outside wall. Work done: mains riser re-piped from the garden under the outside wall into the closet WC. Outcome: mains supply test passed with no drop in pressure.","triples":[["ADI case study 263","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 263","town","Plymouth"],["ADI case study 263","postcode sector","PL4 8"],["ADI case study 263","county","Devon"],["ADI case study 263","country","England"],["ADI case study 263","leak type","Underground water mains leak"],["ADI case study 263","service","Water Mains Leak Detection"],["ADI case study 263","service","Underground Leak Detection"],["ADI case study 263","engineer","Mark Pavitt"],["ADI case study 263","detection method","Acoustic Correlation"],["ADI case study 263","detection method","Tracer Gas"],["ADI case study 263","detection method","Damp Meter"],["ADI case study 263","detection method","Pressure Testing"],["ADI case study 263","system affected","incoming lead mains riser"],["ADI case study 263","pipe material","lead"],["ADI case study 263","test result","combined tests localised the leak area to just in front of the outside wall"],["ADI case study 263","test result","no pressure drop at 4.0 bar of tracer gas over one hour"],["ADI case study 263","leak location","on the lead mains riser between the closet WC and the outside wall"],["ADI case study 263","access made","lead riser exposed under the WC floor"],["ADI case study 263","access made","two sections of garden decking, concrete and bricks removed and the area excavated"],["ADI case study 263","repair","mains riser re-piped from the garden under the outside wall into the closet WC"],["ADI case study 263","repair","length of new 20mm blue poly and two transition fittings added"],["ADI case study 263","outcome","mains supply test passed with no drop in pressure"],["ADI case study 263","recommendation","send the report to the insurers"]]},
{"id":262,"title":"underground water mains leak in Oxford (OX29 8)","summary":"ADI Leak Detection engineer Mark Pavitt investigated an underground water mains leak in Oxford, Oxfordshire (OX29 8), using acoustic correlation, thermal imaging, tracer gas, a damp meter and pressure testing. Leak location: under the kitchen floor. Work done: failed section of 15mm copper mains supply renewed and lagged. Outcome: completion test passed with no drop in pressure.","triples":[["ADI case study 262","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 262","town","Oxford"],["ADI case study 262","postcode sector","OX29 8"],["ADI case study 262","county","Oxfordshire"],["ADI case study 262","country","England"],["ADI case study 262","leak type","Underground water mains leak"],["ADI case study 262","service","Water Mains Leak Detection"],["ADI case study 262","service","Underground Leak Detection"],["ADI case study 262","engineer","Mark Pavitt"],["ADI case study 262","detection method","Acoustic Correlation"],["ADI case study 262","detection method","Thermal Imaging"],["ADI case study 262","detection method","Tracer Gas"],["ADI case study 262","detection method","Damp Meter"],["ADI case study 262","detection method","Pressure Testing"],["ADI case study 262","symptom","two blown tiles"],["ADI case study 262","system affected","15mm copper mains supply pipe"],["ADI case study 262","pipe material","copper"],["ADI case study 262","test result","acoustic irregularity under the floor in front of the kitchen sink unit"],["ADI case study 262","test result","maximum damp meter readings throughout the area"],["ADI case study 262","test result","no pressure drop at 4.0 bar of compressed air over one hour on completion"],["ADI case study 262","leak location","under the kitchen floor"],["ADI case study 262","leak location","on top of the concrete beneath the insulation"],["ADI case study 262","access made","a tile removed"],["ADI case study 262","access made","section of chipboard flooring and a thick layer of insulation removed"],["ADI case study 262","repair","failed section of 15mm copper mains supply renewed and lagged"],["ADI case study 262","outcome","completion test passed with no drop in pressure"],["ADI case study 262","recommendation","send the report to the insurance company"],["ADI case study 262","recommendation","contact the insurance company to arrange remedial works and professional drying"]]},
{"id":261,"title":"hot water system leak in Wandsworth (SW18 5)","summary":"ADI Leak Detection engineer James Hunter investigated a hot water system leak in Wandsworth, Greater London (SW18 5), using acoustic correlation, thermal imaging, tracer gas, a damp meter and pressure testing. Leak location: hot pipe beneath the kitchen floor screed. Work done: copper repair not possible because of water, repair made in plastic. Outcome: plastic repair pressure tested and problem resolved.","triples":[["ADI case study 261","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 261","town","Wandsworth"],["ADI case study 261","postcode sector","SW18 5"],["ADI case study 261","county","Greater London"],["ADI case study 261","country","England"],["ADI case study 261","leak type","Hot water system leak"],["ADI case study 261","service","Hot Water Leak Detection"],["ADI case study 261","service","Internal Leak Detection"],["ADI case study 261","engineer","James Hunter"],["ADI case study 261","detection method","Acoustic Correlation"],["ADI case study 261","detection method","Thermal Imaging"],["ADI case study 261","detection method","Tracer Gas"],["ADI case study 261","detection method","Damp Meter"],["ADI case study 261","detection method","Pressure Testing"],["ADI case study 261","symptom","water board letter reporting high usage at the property"],["ADI case study 261","symptom","several companies had already tried to locate the leak"],["ADI case study 261","system affected","hot water pipe in the floor"],["ADI case study 261","test result","pressure test on the pipework found a leak on the hot pipe"],["ADI case study 261","test result","tracer gas indicated the hot pipe leaking in the floor"],["ADI case study 261","leak location","hot pipe beneath the kitchen floor screed"],["ADI case study 261","leak location","isolation valve under the kitchen sink"],["ADI case study 261","access made","two kitchen units removed and floor dug down through tile and screed"],["ADI case study 261","repair","copper repair not possible because of water, repair made in plastic"],["ADI case study 261","repair","15mm plastic pipe used in the repair"],["ADI case study 261","outcome","plastic repair pressure tested and problem resolved"],["ADI case study 261","outcome","electrical cable caught during excavation was isolated by an electrician"],["ADI case study 261","recommendation","keep an eye on the repair and the water meter"],["ADI case study 261","recommendation","plastic pipe in the floor must stay accessible and be boxed in"]]},
{"id":260,"title":"underground water mains leak in Bourne End (SL7 3)","summary":"ADI Leak Detection engineer James Hunter investigated an underground water mains leak in Bourne End, Buckinghamshire (SL7 3), using acoustic listening, tracer gas, thermal imaging and pressure testing. Leak location: beneath the kitchen floor. Work done: leak at the compression joint repaired. Outcome: no further issues after the second repair.","triples":[["ADI case study 260","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 260","town","Bourne End"],["ADI case study 260","postcode sector","SL7 3"],["ADI case study 260","county","Buckinghamshire"],["ADI case study 260","country","England"],["ADI case study 260","leak type","Underground water mains leak"],["ADI case study 260","service","Water Mains Leak Detection"],["ADI case study 260","service","Underground Leak Detection"],["ADI case study 260","engineer","James Hunter"],["ADI case study 260","detection method","Acoustic Listening"],["ADI case study 260","detection method","Tracer Gas"],["ADI case study 260","detection method","Thermal Imaging"],["ADI case study 260","detection method","Pressure Testing"],["ADI case study 260","symptom","continuous running water heard inside the property"],["ADI case study 260","symptom","water board could not find the leak and had replaced the external mains"],["ADI case study 260","test result","tracer gas in external mains gave a noise coming up in the kitchen"],["ADI case study 260","test result","leak rate not measurable as community fed property has no water meter"],["ADI case study 260","test result","pressure test difficult as supply feeds three tank fed properties"],["ADI case study 260","leak location","beneath the kitchen floor"],["ADI case study 260","leak location","second leak in the floor found on a return visit"],["ADI case study 260","leak cause","compression joint left in the floor had leaked"],["ADI case study 260","access made","kitchen floor lifted, breaking the tiles"],["ADI case study 260","access made","more of the floor dug out on a return visit"],["ADI case study 260","repair","leak at the compression joint repaired"],["ADI case study 260","repair","second leak repaired on the return visit"],["ADI case study 260","outcome","no further issues after the second repair"],["ADI case study 260","outcome","property suffered a lot of water damage"],["ADI case study 260","recommendation","file with the insurance company to have the remaining work verified"],["ADI case study 260","recommendation","claim back the leak allowance from the water board"]]},
{"id":259,"title":"underground water mains leak in Gloucester (GL51 4)","summary":"ADI Leak Detection engineer James Hunter investigated an underground water mains leak in Gloucester, Gloucestershire (GL51 4), using acoustic correlation, tracer gas, a damp meter, an endoscope camera, pressure testing and visual inspection. Leak location: underground at the front of the property. Work done: corroded coupling cut out and replaced with new fittings and pipe. Outcome: re-pressure test found no further leaks on the external mains.","triples":[["ADI case study 259","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 259","town","Gloucester"],["ADI case study 259","postcode sector","GL51 4"],["ADI case study 259","county","Gloucestershire"],["ADI case study 259","country","England"],["ADI case study 259","leak type","Underground water mains leak"],["ADI case study 259","service","Water Mains Leak Detection"],["ADI case study 259","service","Underground Leak Detection"],["ADI case study 259","engineer","James Hunter"],["ADI case study 259","detection method","Acoustic Correlation"],["ADI case study 259","detection method","Tracer Gas"],["ADI case study 259","detection method","Damp Meter"],["ADI case study 259","detection method","Endoscope Camera"],["ADI case study 259","detection method","Pressure Testing"],["ADI case study 259","detection method","Visual Inspection"],["ADI case study 259","symptom","sound of continuous running water in the bathroom"],["ADI case study 259","symptom","noise still heard after a plumber isolated the stopcock"],["ADI case study 259","symptom","a lot of water sitting inside the property"],["ADI case study 259","test result","meter spinning continuously and very fast with internal stopcock isolated"],["ADI case study 259","test result","pressure test confirmed a leak"],["ADI case study 259","test result","strong gas reading and leak heard on pipe at front of property"],["ADI case study 259","leak location","underground at the front of the property"],["ADI case study 259","leak cause","underground coupling completely corroded away"],["ADI case study 259","access made","ground dug out to reach the leak"],["ADI case study 259","repair","corroded coupling cut out and replaced with new fittings and pipe"],["ADI case study 259","outcome","re-pressure test found no further leaks on the external mains"],["ADI case study 259","recommendation","send the report to the utility company to claim the leak allowance"]]},
{"id":258,"title":"central heating leak in Hove (BN3 4)","summary":"ADI Leak Detection engineer James Hunter investigated a central heating leak in Hove, East Sussex (BN3 4), using acoustic correlation, tracer gas, a damp meter and pressure testing. Leak location: push-fit isolation valve beneath the floorboards. Work done: damaged section of pipework replaced and new isolation valve installed. Outcome: inhibitor added, system repressurised and retested.","triples":[["ADI case study 258","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 258","town","Hove"],["ADI case study 258","postcode sector","BN3 4"],["ADI case study 258","county","East Sussex"],["ADI case study 258","country","England"],["ADI case study 258","leak type","Central heating leak"],["ADI case study 258","service","Central Heating Leak Detection"],["ADI case study 258","service","Heating Leak Detection"],["ADI case study 258","engineer","James Hunter"],["ADI case study 258","detection method","Acoustic Correlation"],["ADI case study 258","detection method","Tracer Gas"],["ADI case study 258","detection method","Damp Meter"],["ADI case study 258","detection method","Pressure Testing"],["ADI case study 258","symptom","boiler pressure dropping every 20 minutes, needing frequent repressurisation"],["ADI case study 258","symptom","no visible signs of dampness"],["ADI case study 258","symptom","pressure at zero about 30 minutes after the boiler was topped up"],["ADI case study 258","test result","pipework not hot enough for useful thermal imaging readings"],["ADI case study 258","test result","distinct leak sound picked up beneath the floorboards"],["ADI case study 258","leak location","push-fit isolation valve beneath the floorboards"],["ADI case study 258","leak cause","fractured push-fit isolation valve"],["ADI case study 258","access made","floor lifted"],["ADI case study 258","repair","damaged section of pipework replaced and new isolation valve installed"],["ADI case study 258","outcome","inhibitor added, system repressurised and retested"],["ADI case study 258","recommendation","use this report as guidance and keep up to date with the system"]]},
{"id":257,"title":"internal cold mains leak in Nottingham (NG14 5)","summary":"ADI Leak Detection engineer James Hunter investigated an internal cold mains leak in Nottingham, Nottinghamshire (NG14 5), using acoustic correlation, thermal imaging, tracer gas, a damp meter, pressure testing and visual inspection. Leak location: beneath the utility room floor. Work done: leak under the utility room floor repaired. Outcome: pressure test found no further leaks in the property.","triples":[["ADI case study 257","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 257","town","Nottingham"],["ADI case study 257","postcode sector","NG14 5"],["ADI case study 257","county","Nottinghamshire"],["ADI case study 257","country","England"],["ADI case study 257","leak type","Internal cold mains leak"],["ADI case study 257","service","Water Mains Leak Detection"],["ADI case study 257","service","Internal Leak Detection"],["ADI case study 257","engineer","James Hunter"],["ADI case study 257","detection method","Acoustic Correlation"],["ADI case study 257","detection method","Thermal Imaging"],["ADI case study 257","detection method","Tracer Gas"],["ADI case study 257","detection method","Damp Meter"],["ADI case study 257","detection method","Pressure Testing"],["ADI case study 257","detection method","Visual Inspection"],["ADI case study 257","symptom","continuous noise from pipework with no visible water anywhere"],["ADI case study 257","test result","noise stopped when the internal stopcock was isolated"],["ADI case study 257","test result","pressure test showed a small drop on the cold pipe"],["ADI case study 257","test result","widespread tracer gas in utility room, highest readings under the utility sink"],["ADI case study 257","leak location","beneath the utility room floor"],["ADI case study 257","access made","part of cupboard back removed and area around pipework broken out"],["ADI case study 257","access made","utility room floor lifted"],["ADI case study 257","repair","leak under the utility room floor repaired"],["ADI case study 257","outcome","pressure test found no further leaks in the property"],["ADI case study 257","recommendation","send this report to the insurance company"]]},
{"id":256,"title":"internal cold mains leak in Farnham (GU9 8)","summary":"ADI Leak Detection engineer James Hunter investigated an internal cold mains leak in Farnham, Surrey (GU9 8), using thermal imaging, tracer gas, a damp meter, an endoscope camera, pressure testing and visual inspection. Leak location: tee piece under the kitchen unit. Work done: leak at the tee piece repaired. Outcome: pressure test confirmed no further leaks in the property.","triples":[["ADI case study 256","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 256","town","Farnham"],["ADI case study 256","postcode sector","GU9 8"],["ADI case study 256","county","Surrey"],["ADI case study 256","country","England"],["ADI case study 256","leak type","Internal cold mains leak"],["ADI case study 256","service","Water Mains Leak Detection"],["ADI case study 256","service","Internal Leak Detection"],["ADI case study 256","engineer","James Hunter"],["ADI case study 256","detection method","Thermal Imaging"],["ADI case study 256","detection method","Tracer Gas"],["ADI case study 256","detection method","Damp Meter"],["ADI case study 256","detection method","Endoscope Camera"],["ADI case study 256","detection method","Pressure Testing"],["ADI case study 256","detection method","Visual Inspection"],["ADI case study 256","symptom","water coming up through the flooring"],["ADI case study 256","symptom","small amounts of water repeatedly noticed under the floor"],["ADI case study 256","test result","water meter showed no signs of usage"],["ADI case study 256","test result","about a bar and a half lost within six minutes of pressure testing"],["ADI case study 256","test result","gas readings under kitchen unit, endoscope camera showed a dripping tee piece"],["ADI case study 256","leak location","tee piece under the kitchen unit"],["ADI case study 256","access made","shelving units removed and back of the cupboard cut out"],["ADI case study 256","repair","leak at the tee piece repaired"],["ADI case study 256","repair","15mm tee used in the repair"],["ADI case study 256","outcome","pressure test confirmed no further leaks in the property"],["ADI case study 256","recommendation","get the back of the cupboard repaired"],["ADI case study 256","recommendation","use a dehumidifier so the property can dry out"]]},
{"id":255,"title":"hot water system leak in West Byfleet (KT14 6)","summary":"ADI Leak Detection engineer James Hunter investigated a hot water system leak in West Byfleet, Surrey (KT14 6), using pressure testing, thermal imaging, a damp meter, tracer gas and acoustic correlation. Leak location: where two copper pipes sat on top of each other. Work done: two copper pipes sitting on top of each other cut out and repaired. Outcome: pressure test after both repairs found no further issues.","triples":[["ADI case study 255","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 255","town","West Byfleet"],["ADI case study 255","postcode sector","KT14 6"],["ADI case study 255","county","Surrey"],["ADI case study 255","country","England"],["ADI case study 255","leak type","Hot water system leak"],["ADI case study 255","service","Hot Water Leak Detection"],["ADI case study 255","service","Internal Leak Detection"],["ADI case study 255","engineer","James Hunter"],["ADI case study 255","detection method","Pressure Testing"],["ADI case study 255","detection method","Thermal Imaging"],["ADI case study 255","detection method","Damp Meter"],["ADI case study 255","detection method","Tracer Gas"],["ADI case study 255","detection method","Acoustic Correlation"],["ADI case study 255","symptom","boiler running continuously with a suspected hot pipe leak"],["ADI case study 255","symptom","boiler prioritising hot water over the heating"],["ADI case study 255","symptom","large amount of the floor peeled away"],["ADI case study 255","pipe material","copper"],["ADI case study 255","test result","pressure test on the hot pipe indicated a leak"],["ADI case study 255","test result","gas analyser reading underneath the basin in the downstairs toilet"],["ADI case study 255","test result","retest after first repair failed, gas indicated a leak further down"],["ADI case study 255","leak location","where two copper pipes sat on top of each other"],["ADI case study 255","leak location","pinhole in the pipework further down"],["ADI case study 255","access made","floor opened to reach the leak"],["ADI case study 255","repair","two copper pipes sitting on top of each other cut out and repaired"],["ADI case study 255","repair","both leaks repaired"],["ADI case study 255","outcome","pressure test after both repairs found no further issues"],["ADI case study 255","outcome","boiler working with the heating now running"],["ADI case study 255","recommendation","let the area dry out, then reinstate concrete and protect the pipes"],["ADI case study 255","recommendation","take some crossing pipes out of the floor to avoid future issues"]]},
{"id":254,"title":"central heating leak in Portsmouth (PO5 2)","summary":"ADI Leak Detection engineer James Hunter investigated a central heating leak in Portsmouth, Hampshire (PO5 2), using thermal imaging, tracer gas, a damp meter and an endoscope camera. Leak location: at the rear of the lounge. Work done: affected section of pipe and fitting replaced. Outcome: system repressurised and refilled with inhibitor, no further leaks detected.","triples":[["ADI case study 254","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 254","town","Portsmouth"],["ADI case study 254","postcode sector","PO5 2"],["ADI case study 254","county","Hampshire"],["ADI case study 254","country","England"],["ADI case study 254","leak type","Central heating leak"],["ADI case study 254","service","Central Heating Leak Detection"],["ADI case study 254","service","Heating Leak Detection"],["ADI case study 254","engineer","James Hunter"],["ADI case study 254","detection method","Thermal Imaging"],["ADI case study 254","detection method","Tracer Gas"],["ADI case study 254","detection method","Damp Meter"],["ADI case study 254","detection method","Endoscope Camera"],["ADI case study 254","symptom","boiler pressure dropping within about one hour after recent building works"],["ADI case study 254","symptom","combination boiler shutting down whenever pressure is lost"],["ADI case study 254","system affected","new heating pipework run inside the walls during recent building works"],["ADI case study 254","test result","pipe runs traced but no thermal hotspots indicating a leak"],["ADI case study 254","test result","elevated moisture readings in back bedroom and main bathroom"],["ADI case study 254","test result","high tracer gas readings at rear of lounge through an existing access hole"],["ADI case study 254","leak location","at the rear of the lounge"],["ADI case study 254","leak cause","pipe coated in paint or tar-like substance could not seal inside the fitting"],["ADI case study 254","access made","access made at the rear of the lounge"],["ADI case study 254","repair","affected section of pipe and fitting replaced"],["ADI case study 254","outcome","system repressurised and refilled with inhibitor, no further leaks detected"],["ADI case study 254","recommendation","monitor the heating system"],["ADI case study 254","recommendation","pass the invoice to the builder responsible for the defective work"]]},
{"id":253,"title":"internal cold mains leak in Hemel Hempstead","summary":"ADI Leak Detection engineer Darren Smith investigated an internal cold mains leak in Hemel Hempstead, using acoustic correlation, tracer gas, a damp meter, pressure testing and visual inspection. Leak location: in the hallway, to the left of the damp patch on the wall. Work done: defective section of copper pipework cut out and renewed. Outcome: mains held 4 bar for 30 minutes with no loss of pressure.","triples":[["ADI case study 253","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 253","town","Hemel Hempstead"],["ADI case study 253","country","England"],["ADI case study 253","leak type","Internal cold mains leak"],["ADI case study 253","service","Water Mains Leak Detection"],["ADI case study 253","service","Internal Leak Detection"],["ADI case study 253","engineer","Darren Smith"],["ADI case study 253","detection method","Acoustic Correlation"],["ADI case study 253","detection method","Tracer Gas"],["ADI case study 253","detection method","Damp Meter"],["ADI case study 253","detection method","Pressure Testing"],["ADI case study 253","detection method","Visual Inspection"],["ADI case study 253","symptom","wet floor and left-hand side wall"],["ADI case study 253","symptom","water meter registering continuous usage"],["ADI case study 253","pipe material","copper"],["ADI case study 253","test result","meter usage stopped with internal stopvalve closed"],["ADI case study 253","test result","pressure tests on mains and distribution pipework confirmed leak on internal mains"],["ADI case study 253","test result","large gas trace in hallway, acoustic leak evidence left of damp patch"],["ADI case study 253","leak location","in the hallway, to the left of the damp patch on the wall"],["ADI case study 253","access made","area excavated to expose the leaking copper pipework"],["ADI case study 253","repair","defective section of copper pipework cut out and renewed"],["ADI case study 253","repair","temporary repair to dripping packing gland on the internal stopvalve"],["ADI case study 253","outcome","mains held 4 bar for 30 minutes with no loss of pressure"],["ADI case study 253","outcome","no meter usage in 15 minute check with all isolation valves open"],["ADI case study 253","recommendation","internal stopvalve may need replacing in the near future"]]},
{"id":252,"title":"underground mains leak in Enfield Town (N14 6)","summary":"ADI Leak Detection engineer Darren Smith investigated an underground mains leak in Enfield Town, Greater London (N14 6), using acoustic correlation, tracer gas, pressure testing and flow metering. Leak location: between the lead mains and an obsolete stopvalve in the back garden. Work done: leaking section cut out and replaced. Outcome: mains held 3 bar for 30 minutes after repair with no loss.","triples":[["ADI case study 252","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 252","town","Enfield Town"],["ADI case study 252","postcode sector","N14 6"],["ADI case study 252","county","Greater London"],["ADI case study 252","country","England"],["ADI case study 252","leak type","Underground mains leak"],["ADI case study 252","service","Water Mains Leak Detection"],["ADI case study 252","service","Underground Leak Detection"],["ADI case study 252","engineer","Darren Smith"],["ADI case study 252","detection method","Acoustic Correlation"],["ADI case study 252","detection method","Tracer Gas"],["ADI case study 252","detection method","Pressure Testing"],["ADI case study 252","detection method","Flow Metering"],["ADI case study 252","symptom","water meter registering about 0.5 litres per hour with all known outlets closed"],["ADI case study 252","symptom","no obvious signs of a leak"],["ADI case study 252","system affected","lead mains pipework"],["ADI case study 252","pipe material","lead"],["ADI case study 252","test result","all pressure lost during 30 minute test at 3 bar"],["ADI case study 252","test result","large tracer gas trace in back garden about 1.5m from the meter"],["ADI case study 252","leak location","between the lead mains and an obsolete stopvalve in the back garden"],["ADI case study 252","access made","back garden excavated to expose the mains pipework"],["ADI case study 252","repair","leaking section cut out and replaced"],["ADI case study 252","repair","1m of 25mm MDPE used in the repair"],["ADI case study 252","outcome","mains held 3 bar for 30 minutes after repair with no loss"],["ADI case study 252","outcome","excavation back-filled and mains flushed"]]},
{"id":251,"title":"central heating leak in East Dereham (IP25 7)","summary":"ADI Leak Detection engineer Darren Smith investigated a central heating leak in East Dereham, Norfolk (IP25 7), using thermal imaging, tracer gas, pressure testing, acoustic correlation and a damp meter. Leak location: under the hallway floor in front of the radiator. Work done: leaking section of copper tube cut out and renewed. Outcome: heating held 2 bar for 30 minutes after repair with no pressure loss.","triples":[["ADI case study 251","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 251","town","East Dereham"],["ADI case study 251","postcode sector","IP25 7"],["ADI case study 251","county","Norfolk"],["ADI case study 251","country","England"],["ADI case study 251","leak type","Central heating leak"],["ADI case study 251","service","Central Heating Leak Detection"],["ADI case study 251","service","Heating Leak Detection"],["ADI case study 251","engineer","Darren Smith"],["ADI case study 251","detection method","Thermal Imaging"],["ADI case study 251","detection method","Tracer Gas"],["ADI case study 251","detection method","Pressure Testing"],["ADI case study 251","detection method","Acoustic Correlation"],["ADI case study 251","detection method","Damp Meter"],["ADI case study 251","symptom","boiler losing pressure over about 12 hours"],["ADI case study 251","symptom","laminate slightly raised at right-hand side of downstairs WC, door damp"],["ADI case study 251","pipe material","copper"],["ADI case study 251","test result","2 bar test for 30 minutes showed no pressure loss before repair"],["ADI case study 251","test result","no tracer gas evidence of a leak along the pipework route"],["ADI case study 251","test result","screed under WC doorway damp, getting wetter towards the hallway"],["ADI case study 251","leak location","under the hallway floor in front of the radiator"],["ADI case study 251","leak cause","machine-bent copper tube ripped on the concave side of the bend"],["ADI case study 251","access made","floor at right-hand side of downstairs WC doorway excavated"],["ADI case study 251","access made","second area excavated in the hallway in front of the radiator"],["ADI case study 251","repair","leaking section of copper tube cut out and renewed"],["ADI case study 251","outcome","heating held 2 bar for 30 minutes after repair with no pressure loss"],["ADI case study 251","outcome","heating filled, vented and operating correctly"]]},
{"id":250,"title":"hot water system leak in Burnham (SL1 3)","summary":"ADI Leak Detection engineer Darren Smith investigated a hot water system leak in Burnham, Berkshire (SL1 3), using acoustic correlation, thermal imaging, tracer gas, a damp meter and pressure testing. Leak location: in the floor at the kitchen doorway. Work done: leaking section of hot pipework cut out and replaced. Outcome: hot pipework held 3 bar for 30 minutes with no loss.","triples":[["ADI case study 250","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 250","town","Burnham"],["ADI case study 250","postcode sector","SL1 3"],["ADI case study 250","county","Berkshire"],["ADI case study 250","country","England"],["ADI case study 250","leak type","Hot water system leak"],["ADI case study 250","service","Hot Water Leak Detection"],["ADI case study 250","service","Internal Leak Detection"],["ADI case study 250","engineer","Darren Smith"],["ADI case study 250","detection method","Acoustic Correlation"],["ADI case study 250","detection method","Thermal Imaging"],["ADI case study 250","detection method","Tracer Gas"],["ADI case study 250","detection method","Damp Meter"],["ADI case study 250","detection method","Pressure Testing"],["ADI case study 250","symptom","hallway and downstairs WC floors wet throughout"],["ADI case study 250","symptom","boiler not losing pressure"],["ADI case study 250","system affected","hot supply branch pipework in the hallway floor"],["ADI case study 250","test result","mains and hot supply tested at 3 bar for 30 minutes, leak on hot supply"],["ADI case study 250","test result","thermal imaging could not trace hot pipework buried too deep"],["ADI case study 250","test result","large tracer gas trace at the base of the soil stack"],["ADI case study 250","leak location","in the floor at the kitchen doorway"],["ADI case study 250","access made","floor excavated in several areas to locate the pipework"],["ADI case study 250","repair","leaking section of hot pipework cut out and replaced"],["ADI case study 250","outcome","hot pipework held 3 bar for 30 minutes with no loss"],["ADI case study 250","outcome","pipework flushed and excavated areas back-filled"]]},
{"id":249,"title":"internal cold mains leak in Coventry (CV5 9)","summary":"ADI Leak Detection engineer Darren Smith investigated an internal cold mains leak in Coventry, West Midlands (CV5 9), using thermal imaging, tracer gas, a damp meter, pressure testing and flow metering. Leak location: hot supply pipe in the hallway outside the bathroom door. Work done: leaking section of copper tube cut out and renewed. Outcome: repaired pipework held 4 bar for 30 minutes with no loss.","triples":[["ADI case study 249","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 249","town","Coventry"],["ADI case study 249","postcode sector","CV5 9"],["ADI case study 249","county","West Midlands"],["ADI case study 249","country","England"],["ADI case study 249","leak type","Internal cold mains leak"],["ADI case study 249","service","Water Mains Leak Detection"],["ADI case study 249","service","Internal Leak Detection"],["ADI case study 249","engineer","Darren Smith"],["ADI case study 249","detection method","Thermal Imaging"],["ADI case study 249","detection method","Tracer Gas"],["ADI case study 249","detection method","Damp Meter"],["ADI case study 249","detection method","Pressure Testing"],["ADI case study 249","detection method","Flow Metering"],["ADI case study 249","symptom","water pooling in cupboard under stairs, hallway and bathroom floors damp"],["ADI case study 249","symptom","combination boiler losing pressure over two weeks"],["ADI case study 249","system affected","hot water supply pipework"],["ADI case study 249","pipe material","copper"],["ADI case study 249","test result","meter registered 6 litres per hour, stopping when internal stop valve closed"],["ADI case study 249","test result","leak found at WC cistern ball valve, then on hot supply pipework"],["ADI case study 249","test result","tracer gas detected almost immediately in hallway outside bathroom door"],["ADI case study 249","leak location","hot supply pipe in the hallway outside the bathroom door"],["ADI case study 249","leak location","ball valve in the WC cistern"],["ADI case study 249","leak cause","apparent physical damage to the pipe during installation"],["ADI case study 249","access made","hallway area excavated to expose the copper tube"],["ADI case study 249","repair","leaking section of copper tube cut out and renewed"],["ADI case study 249","outcome","repaired pipework held 4 bar for 30 minutes with no loss"],["ADI case study 249","outcome","water supply reinstated and pipework flushed"],["ADI case study 249","recommendation","replace the ball valve in the WC cistern"],["ADI case study 249","recommendation","heating loss must reach at least 1.5 bar over 24 hours to be located"]]},
{"id":248,"title":"underground mains leak in Dunstable (LU6 2)","summary":"ADI Leak Detection engineer Darren Smith investigated an underground mains leak in Dunstable, Bedfordshire (LU6 2), using tracer gas, pressure testing, acoustic listening and visual inspection. Leak location: multiple leaks on mains pipework in access chamber beneath drain cover. Work done: leaking section of mains pipework cut out and renewed. Outcome: internal and external mains held 2.5 bar together for 30 minutes.","triples":[["ADI case study 248","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 248","town","Dunstable"],["ADI case study 248","postcode sector","LU6 2"],["ADI case study 248","county","Bedfordshire"],["ADI case study 248","country","England"],["ADI case study 248","leak type","Underground mains leak"],["ADI case study 248","service","Water Mains Leak Detection"],["ADI case study 248","service","Underground Leak Detection"],["ADI case study 248","engineer","Darren Smith"],["ADI case study 248","detection method","Tracer Gas"],["ADI case study 248","detection method","Pressure Testing"],["ADI case study 248","detection method","Acoustic Listening"],["ADI case study 248","detection method","Visual Inspection"],["ADI case study 248","property type","petrol garage"],["ADI case study 248","symptom","water meter registering 15 litres per minute with all known outlets closed"],["ADI case study 248","system affected","mains pipework running through an access chamber"],["ADI case study 248","test result","all pressure lost almost immediately on 2.5 bar test"],["ADI case study 248","test result","large gas trace and bubbling at drain cover two metres left of stop valve"],["ADI case study 248","leak location","multiple leaks on mains pipework in access chamber beneath drain cover"],["ADI case study 248","access made","drain cover lifted and access chamber emptied of water"],["ADI case study 248","repair","leaking section of mains pipework cut out and renewed"],["ADI case study 248","outcome","internal and external mains held 2.5 bar together for 30 minutes"],["ADI case study 248","outcome","water meter check showed no usage"]]},
{"id":247,"title":"internal cold mains leak in Wokingham (RG40 2)","summary":"ADI Leak Detection engineer Darren Smith investigated an internal cold mains leak in Wokingham, Berkshire (RG40 2), using acoustic correlation, thermal imaging, tracer gas, a damp meter and pressure testing. Leak location: sink supply pipe at the right-hand wall of the kitchen. Work done: leaking section of pipe cut out and renewed. Outcome: mains held 3 bar for 30 minutes with no loss of pressure.","triples":[["ADI case study 247","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 247","town","Wokingham"],["ADI case study 247","postcode sector","RG40 2"],["ADI case study 247","county","Berkshire"],["ADI case study 247","country","England"],["ADI case study 247","leak type","Internal cold mains leak"],["ADI case study 247","service","Water Mains Leak Detection"],["ADI case study 247","service","Internal Leak Detection"],["ADI case study 247","engineer","Darren Smith"],["ADI case study 247","detection method","Acoustic Correlation"],["ADI case study 247","detection method","Thermal Imaging"],["ADI case study 247","detection method","Tracer Gas"],["ADI case study 247","detection method","Damp Meter"],["ADI case study 247","detection method","Pressure Testing"],["ADI case study 247","symptom","wet laminate kitchen floor and water damage to lower 300mm of walls"],["ADI case study 247","symptom","water meter registering continuous usage"],["ADI case study 247","system affected","mains pipework supplying the kitchen sink"],["ADI case study 247","test result","meter usage stopped with internal stopvalve closed, leak on internal pipework"],["ADI case study 247","test result","tracer gas pressure test confirmed a leak on internal mains supply pipework"],["ADI case study 247","test result","tracer gas detected at the right-hand wall of the kitchen"],["ADI case study 247","leak location","sink supply pipe at the right-hand wall of the kitchen"],["ADI case study 247","access made","area at the right-hand kitchen wall excavated"],["ADI case study 247","repair","leaking section of pipe cut out and renewed"],["ADI case study 247","outcome","mains held 3 bar for 30 minutes with no loss of pressure"],["ADI case study 247","outcome","water supply reinstated and pipework flushed through"]]},
{"id":246,"title":"central heating leak in Burnham (SL6 4)","summary":"ADI Leak Detection engineer Darren Smith investigated a central heating leak in Burnham, Berkshire (SL6 4), using acoustic correlation, tracer gas, visual inspection and pressure testing. Leak location: soldered tee under tiled concrete floor by left side of shower room radiator. Work done: leaking section of copper tube cut out and replaced. Outcome: heating held 2 bar for 60 minutes with no loss of pressure.","triples":[["ADI case study 246","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 246","town","Burnham"],["ADI case study 246","postcode sector","SL6 4"],["ADI case study 246","county","Berkshire"],["ADI case study 246","country","England"],["ADI case study 246","leak type","Central heating leak"],["ADI case study 246","service","Central Heating Leak Detection"],["ADI case study 246","service","Heating Leak Detection"],["ADI case study 246","engineer","Darren Smith"],["ADI case study 246","detection method","Acoustic Correlation"],["ADI case study 246","detection method","Tracer Gas"],["ADI case study 246","detection method","Visual Inspection"],["ADI case study 246","detection method","Pressure Testing"],["ADI case study 246","symptom","boiler defective and could not be fired"],["ADI case study 246","pipe material","copper"],["ADI case study 246","test result","no obvious signs of leaks on accessible pipework"],["ADI case study 246","test result","sound of a leak heard at the ground floor shower room radiator"],["ADI case study 246","test result","large tracer gas trace at left side of shower room radiator"],["ADI case study 246","leak location","soldered tee under tiled concrete floor by left side of shower room radiator"],["ADI case study 246","access made","tiled concrete floor excavated"],["ADI case study 246","repair","leaking section of copper tube cut out and replaced"],["ADI case study 246","outcome","heating held 2 bar for 60 minutes with no loss of pressure"],["ADI case study 246","outcome","Sentinel X400 added in an attempt to clean a blockage in the pipework"],["ADI case study 246","recommendation","have the boiler checked by a heating engineer"],["ADI case study 246","recommendation","drain Sentinel X400 out as described in manufacturer instructions"]]},
{"id":245,"title":"underground mains leak in Colnbrook (SL3 8)","summary":"ADI Leak Detection engineer Darren Smith investigated an underground mains leak in Colnbrook, Berkshire (SL3 8), using acoustic correlation, tracer gas, pressure testing and flow metering. Leak location: open ended pipework in the ground at the front of the property. Work done: open end of the old mains pipework capped. Outcome: mains held 3.5 bar for 30 minutes after repair.","triples":[["ADI case study 245","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 245","town","Colnbrook"],["ADI case study 245","postcode sector","SL3 8"],["ADI case study 245","county","Berkshire"],["ADI case study 245","country","England"],["ADI case study 245","leak type","Underground mains leak"],["ADI case study 245","service","Water Mains Leak Detection"],["ADI case study 245","service","Underground Leak Detection"],["ADI case study 245","engineer","Darren Smith"],["ADI case study 245","detection method","Acoustic Correlation"],["ADI case study 245","detection method","Tracer Gas"],["ADI case study 245","detection method","Pressure Testing"],["ADI case study 245","detection method","Flow Metering"],["ADI case study 245","symptom","water meter registering continuous usage of 1 litre per minute"],["ADI case study 245","system affected","old mains pipework left connected to the internal cold supply"],["ADI case study 245","test result","meter usage unchanged with the internal stopvalve closed"],["ADI case study 245","test result","large tracer gas trace at the front of the property"],["ADI case study 245","test result","pressure test after capping the open end showed a second leak"],["ADI case study 245","leak location","open ended pipework in the ground at the front of the property"],["ADI case study 245","leak cause","old mains left connected with an open end when the mains was replaced"],["ADI case study 245","access made","ground excavated at the front of the property"],["ADI case study 245","repair","open end of the old mains pipework capped"],["ADI case study 245","repair","obsolete internal stopvalve found behind boxing removed and pipework capped"],["ADI case study 245","outcome","mains held 3.5 bar for 30 minutes after repair"],["ADI case study 245","outcome","pipework flushed through and excavation backfilled"]]},
{"id":244,"title":"hot water system leak in Burnham (SL6 6)","summary":"ADI Leak Detection engineer Darren Smith investigated a hot water system leak in Burnham, Berkshire (SL6 6), using acoustic listening, thermal imaging, tracer gas, a damp meter and pressure testing. Leak location: under the tiled kitchen floor. Work done: leaking section of hot supply pipework cut out and renewed. Outcome: repaired hot supply and heating pipework held 2 bar for 60 minutes.","triples":[["ADI case study 244","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 244","town","Burnham"],["ADI case study 244","postcode sector","SL6 6"],["ADI case study 244","county","Berkshire"],["ADI case study 244","country","England"],["ADI case study 244","leak type","Hot water system leak"],["ADI case study 244","service","Hot Water Leak Detection"],["ADI case study 244","service","Internal Leak Detection"],["ADI case study 244","engineer","Darren Smith"],["ADI case study 244","detection method","Acoustic Listening"],["ADI case study 244","detection method","Thermal Imaging"],["ADI case study 244","detection method","Tracer Gas"],["ADI case study 244","detection method","Damp Meter"],["ADI case study 244","detection method","Pressure Testing"],["ADI case study 244","symptom","water damage to kitchen floor and walls"],["ADI case study 244","symptom","kitchen floor tiles lifted by the damp"],["ADI case study 244","symptom","no report of boiler needing regular repressurising"],["ADI case study 244","system affected","hot water supply pipework"],["ADI case study 244","test result","sound of moving water by cylinder stopped when its cold feed was closed"],["ADI case study 244","test result","pressure test of cold mains and hot supply confirmed leak on the hot"],["ADI case study 244","test result","large tracer gas trace in kitchen almost immediately, bubbling clearly heard"],["ADI case study 244","leak location","under the tiled kitchen floor"],["ADI case study 244","access made","kitchen unit removed and tiled floor excavated"],["ADI case study 244","repair","leaking section of hot supply pipework cut out and renewed"],["ADI case study 244","repair","heating pipe damaged during excavation cut out and replaced"],["ADI case study 244","outcome","repaired hot supply and heating pipework held 2 bar for 60 minutes"],["ADI case study 244","outcome","heating filled and vented, hot water supply reinstated"]]},
{"id":243,"title":"swimming pool leak in Broadstairs (CT10 3)","summary":"ADI Leak Detection engineer Danny O'Mahony investigated a swimming pool leak in Broadstairs, Kent (CT10 3), using pressure testing, acoustic correlation, tracer gas, leak dye and acoustic listening. Leak location: skimmer pipe in or under the filtration shed slab. Work done: vinyl patch over L shaped tear, clear construction sealant under the light. Outcome: pump left running on sump only because of skimmer line leak.","triples":[["ADI case study 243","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 243","town","Broadstairs"],["ADI case study 243","postcode sector","CT10 3"],["ADI case study 243","county","Kent"],["ADI case study 243","country","England"],["ADI case study 243","leak type","Swimming pool leak"],["ADI case study 243","service","Swimming Pool Leak Detection"],["ADI case study 243","engineer","Danny O'Mahony"],["ADI case study 243","detection method","Pressure Testing"],["ADI case study 243","detection method","Acoustic Correlation"],["ADI case study 243","detection method","Tracer Gas"],["ADI case study 243","detection method","Leak Dye"],["ADI case study 243","detection method","Acoustic Listening"],["ADI case study 243","symptom","pool level dropping by up to 20cm per day"],["ADI case study 243","symptom","water level settling close to bottom of the lowest step"],["ADI case study 243","system affected","skimmer pipework"],["ADI case study 243","system affected","pool liner"],["ADI case study 243","test result","skimmer pipework failed to hold pressure"],["ADI case study 243","test result","tracer gas escaping in filtration shed concrete slab near pipe entry"],["ADI case study 243","test result","dye drawn in behind the liner at both tears"],["ADI case study 243","leak location","skimmer pipe in or under the filtration shed slab"],["ADI case study 243","leak location","L shaped liner tear with legs about 70mm, second leak under light frame"],["ADI case study 243","leak cause","liner moved and tore from its fixing and seal under the light frame"],["ADI case study 243","repair","vinyl patch over L shaped tear, clear construction sealant under the light"],["ADI case study 243","outcome","pump left running on sump only because of skimmer line leak"],["ADI case study 243","outcome","liner patch and sealant repairs considered temporary only"],["ADI case study 243","recommendation","seek liner or pool installer advice on a permanent liner repair"],["ADI case study 243","recommendation","monitor as heating 10 degrees above current 18 may reveal other leaks"],["ADI case study 243","recommendation","further trace and access work needed to repair the skimmer leak"]]},
{"id":242,"title":"swimming pool leak in Oxford (OX14 4)","summary":"ADI Leak Detection engineer Danny O'Mahony investigated a swimming pool leak in Oxford, Oxfordshire (OX14 4), using acoustic listening, leak dye, pressure testing, flow metering and visual inspection. Leak location: pool light fitting closest to the steps. Work done: loose silicone seals removed, light fittings sealed to tiled wall with epoxy putty. Outcome: no dye drawn into pool wall at previously leaking light after sealing.","triples":[["ADI case study 242","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 242","town","Oxford"],["ADI case study 242","postcode sector","OX14 4"],["ADI case study 242","county","Oxfordshire"],["ADI case study 242","country","England"],["ADI case study 242","leak type","Swimming pool leak"],["ADI case study 242","service","Swimming Pool Leak Detection"],["ADI case study 242","engineer","Danny O'Mahony"],["ADI case study 242","detection method","Acoustic Listening"],["ADI case study 242","detection method","Leak Dye"],["ADI case study 242","detection method","Pressure Testing"],["ADI case study 242","detection method","Flow Metering"],["ADI case study 242","detection method","Visual Inspection"],["ADI case study 242","symptom","pool auto fill running continuously at 2 litres per minute"],["ADI case study 242","test result","hydrophone found small light near the steps very noisy"],["ADI case study 242","test result","dye drawn into the wall around the light fitting near the steps"],["ADI case study 242","test result","pressure tests found all pool pipework sound"],["ADI case study 242","leak location","pool light fitting closest to the steps"],["ADI case study 242","repair","loose silicone seals removed, light fittings sealed to tiled wall with epoxy putty"],["ADI case study 242","outcome","no dye drawn into pool wall at previously leaking light after sealing"],["ADI case study 242","outcome","meter showed no measurable usage, pool back at full level"],["ADI case study 242","recommendation","silicone decorative steel face plate onto plastic face plate of return jet near steps"],["ADI case study 242","recommendation","leave pump off for 12 to 15 hours while the silicone sets"]]},
{"id":241,"title":"underground water mains leak in Watford (WD17 4)","summary":"ADI Leak Detection engineer Danny O'Mahony investigated an underground water mains leak in Watford, Hertfordshire (WD17 4), using acoustic correlation, a damp meter, pressure testing, flow metering and visual inspection. Leak location: hole in 15mm copper pipe under the lounge floor screed. Work done: small section of pipe cut out. Outcome: incoming mains held 2.4 bar with no measurable loss for 20 minutes.","triples":[["ADI case study 241","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 241","town","Watford"],["ADI case study 241","postcode sector","WD17 4"],["ADI case study 241","county","Hertfordshire"],["ADI case study 241","country","England"],["ADI case study 241","leak type","Underground water mains leak"],["ADI case study 241","service","Water Mains Leak Detection"],["ADI case study 241","service","Underground Leak Detection"],["ADI case study 241","engineer","Danny O'Mahony"],["ADI case study 241","detection method","Acoustic Correlation"],["ADI case study 241","detection method","Damp Meter"],["ADI case study 241","detection method","Pressure Testing"],["ADI case study 241","detection method","Flow Metering"],["ADI case study 241","detection method","Visual Inspection"],["ADI case study 241","symptom","laminate flooring in the lounge starting to swell"],["ADI case study 241","symptom","heating system losing some pressure, not enough to cause the floor damage"],["ADI case study 241","system affected","incoming mains water pipe"],["ADI case study 241","pipe material","15mm copper"],["ADI case study 241","test result","999 moisture readings on lounge wall beside the door to the stairs"],["ADI case study 241","test result","meter recording about 5 to 6 litres per minute, unchanged with internal valve off"],["ADI case study 241","test result","bubbling and escaping air heard in lounge floor behind the TV unit"],["ADI case study 241","leak location","hole in 15mm copper pipe under the lounge floor screed"],["ADI case study 241","access made","laminate flooring cut up and screed below broken up"],["ADI case study 241","repair","small section of pipe cut out"],["ADI case study 241","repair","repaired with copper tube, copper fittings, flux and solder"],["ADI case study 241","outcome","incoming mains held 2.4 bar with no measurable loss for 20 minutes"],["ADI case study 241","outcome","no meter usage over 20 minutes with all pipework reconnected"],["ADI case study 241","recommendation","take professional advice on drying out given wide spread of high moisture"]]},
{"id":240,"title":"hot water system leak in March (PE13 2)","summary":"ADI Leak Detection engineer Danny O'Mahony investigated a hot water system leak in March, Cambridgeshire (PE13 2), using acoustic correlation, thermal imaging, tracer gas, a damp meter, pressure testing and flow metering. Leak location: two leaks about 6 inches apart in the floor under the washing machine. Work done: third leak also cut out and remaining pipe tested for other leaks. Outcome: repair held 3.2 bar mains pressure with no measurable loss over 30 minutes.","triples":[["ADI case study 240","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 240","town","March"],["ADI case study 240","postcode sector","PE13 2"],["ADI case study 240","county","Cambridgeshire"],["ADI case study 240","country","England"],["ADI case study 240","leak type","Hot water system leak"],["ADI case study 240","service","Hot Water Leak Detection"],["ADI case study 240","service","Internal Leak Detection"],["ADI case study 240","engineer","Danny O'Mahony"],["ADI case study 240","detection method","Acoustic Correlation"],["ADI case study 240","detection method","Thermal Imaging"],["ADI case study 240","detection method","Tracer Gas"],["ADI case study 240","detection method","Damp Meter"],["ADI case study 240","detection method","Pressure Testing"],["ADI case study 240","detection method","Flow Metering"],["ADI case study 240","symptom","water meter recording continuous use of about 5 to 7 litres per hour"],["ADI case study 240","system affected","hot water pipework beneath the utility room floor"],["ADI case study 240","test result","meter stopped recording with internal stopcock off, leak on internal pipes"],["ADI case study 240","test result","cold pipework held pressure, hot water pipes lost pressure"],["ADI case study 240","test result","tracer gas detected in the floor to the left of the washing machine"],["ADI case study 240","leak location","two leaks about 6 inches apart in the floor under the washing machine"],["ADI case study 240","leak location","third leak about 10 inches from the first two"],["ADI case study 240","access made","floor opened where gas and moisture readings pointed"],["ADI case study 240","repair","third leak also cut out and remaining pipe tested for other leaks"],["ADI case study 240","repair","section of pipe about 2 feet long replaced with copper tube and soldered fittings"],["ADI case study 240","outcome","repair held 3.2 bar mains pressure with no measurable loss over 30 minutes"],["ADI case study 240","recommendation","seek professional advice on drying out"]]},
{"id":239,"title":"underground water mains leak in Maidstone (ME17 2)","summary":"ADI Leak Detection engineer Danny O'Mahony investigated an underground water mains leak in Maidstone, Kent (ME17 2), using acoustic correlation, tracer gas, pressure testing, a ground microphone and flow metering. Leak location: in the ground outside the kitchen window near the soil stack. Work done: short section cut out and replaced with transition couplings and blue MDPE pipe. Outcome: no pressure loss on low pressure test after second repair.","triples":[["ADI case study 239","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 239","town","Maidstone"],["ADI case study 239","postcode sector","ME17 2"],["ADI case study 239","county","Kent"],["ADI case study 239","country","England"],["ADI case study 239","leak type","Underground water mains leak"],["ADI case study 239","service","Water Mains Leak Detection"],["ADI case study 239","service","Underground Leak Detection"],["ADI case study 239","engineer","Danny O'Mahony"],["ADI case study 239","detection method","Acoustic Correlation"],["ADI case study 239","detection method","Tracer Gas"],["ADI case study 239","detection method","Pressure Testing"],["ADI case study 239","detection method","Ground Microphone"],["ADI case study 239","detection method","Flow Metering"],["ADI case study 239","property type","farmhouse"],["ADI case study 239","symptom","water mains leak reported at 250 litres per hour"],["ADI case study 239","system affected","thin wall steel pipe joined to thicker wall steel main near the house"],["ADI case study 239","pipe material","thin wall steel"],["ADI case study 239","test result","no pressure loss over 15 minutes from meter to new blue MDPE connection"],["ADI case study 239","test result","upper half of pipework to farmhouse and troughs slowly lost pressure"],["ADI case study 239","test result","loudest acoustic signals at same spot as highest tracer gas reading"],["ADI case study 239","leak location","in the ground outside the kitchen window near the soil stack"],["ADI case study 239","leak location","second leak a couple of inches from the first repair"],["ADI case study 239","leak cause","corroded section of steel pipe"],["ADI case study 239","leak cause","lateral fractures in both leaking sections of pipe"],["ADI case study 239","access made","ground dug out to expose the leaking pipe"],["ADI case study 239","repair","short section cut out and replaced with transition couplings and blue MDPE pipe"],["ADI case study 239","repair","first repair removed and steel pipe cut further back towards the property"],["ADI case study 239","outcome","no pressure loss on low pressure test after second repair"],["ADI case study 239","outcome","no water usage at meter over 15 minutes, high pressure test not done"],["ADI case study 239","recommendation","replace steel pipe from the repair into the property as soon as possible"]]},
{"id":238,"title":"central heating leak in Hertford (AL3 4)","summary":"ADI Leak Detection engineer Danny O'Mahony investigated a central heating leak in Hertford, Hertfordshire (AL3 4), using thermal imaging, a damp meter, acoustic correlation, tracer gas, pressure testing and visual inspection. Leak location: pulled bend beneath the hallway floor. Work done: short section of pipe replaced with new section soldered into position. Outcome: heating system held 1.8 bar for 45 minutes with no measurable loss.","triples":[["ADI case study 238","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 238","town","Hertford"],["ADI case study 238","postcode sector","AL3 4"],["ADI case study 238","county","Hertfordshire"],["ADI case study 238","country","England"],["ADI case study 238","leak type","Central heating leak"],["ADI case study 238","service","Central Heating Leak Detection"],["ADI case study 238","service","Heating Leak Detection"],["ADI case study 238","engineer","Danny O'Mahony"],["ADI case study 238","detection method","Thermal Imaging"],["ADI case study 238","detection method","Damp Meter"],["ADI case study 238","detection method","Acoustic Correlation"],["ADI case study 238","detection method","Tracer Gas"],["ADI case study 238","detection method","Pressure Testing"],["ADI case study 238","detection method","Visual Inspection"],["ADI case study 238","symptom","leak became apparent shortly after a new boiler was installed"],["ADI case study 238","symptom","system still losing pressure, needing repressurising 3 to 4 times a day"],["ADI case study 238","symptom","no obvious water damage or damp showing the leak location"],["ADI case study 238","pipe material","copper"],["ADI case study 238","test result","thermal hotspot in hallway about 12 inches from left side of radiator"],["ADI case study 238","test result","moisture reading of 999 at the hotspot, dry 6 inches either side"],["ADI case study 238","test result","tracer gas escaping only around left hand hallway radiator connection"],["ADI case study 238","leak location","pulled bend beneath the hallway floor"],["ADI case study 238","leak cause","lateral fracture on a pulled bend in the heating pipework"],["ADI case study 238","access made","small section of hallway laminate flooring cut up"],["ADI case study 238","access made","parquet flooring with very high moisture reading removed beneath laminate"],["ADI case study 238","repair","short section of pipe replaced with new section soldered into position"],["ADI case study 238","outcome","heating system held 1.8 bar for 45 minutes with no measurable loss"],["ADI case study 238","outcome","system vented, filled and heat tested, heat reached all radiators"],["ADI case study 238","recommendation","monitor heating pressure for further loss that may need more leak detection"],["ADI case study 238","recommendation","contact insurer or drying specialist about removing moisture from the floor"],["ADI case study 238","recommendation","protect replacement and exposed copper pipe from screed or concrete refill"]]},
{"id":237,"title":"internal cold mains leak in Bovingdon (WD3 8)","summary":"ADI Leak Detection engineer Danny O'Mahony investigated an internal cold mains leak in Bovingdon, Hertfordshire (WD3 8), using thermal imaging, a damp meter, pressure testing, a ground microphone, tracer gas and acoustic listening. Leak location: pinhole on cold water main within bathroom floor screed. Work done: 6 to 8 inch section of pipe replaced with solid copper pipe and fittings. Outcome: repaired cold water main held 3.3 bar for 20 minutes without measurable loss.","triples":[["ADI case study 237","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 237","town","Bovingdon"],["ADI case study 237","postcode sector","WD3 8"],["ADI case study 237","county","Hertfordshire"],["ADI case study 237","country","England"],["ADI case study 237","leak type","Internal cold mains leak"],["ADI case study 237","service","Water Mains Leak Detection"],["ADI case study 237","service","Internal Leak Detection"],["ADI case study 237","engineer","Danny O'Mahony"],["ADI case study 237","detection method","Thermal Imaging"],["ADI case study 237","detection method","Damp Meter"],["ADI case study 237","detection method","Pressure Testing"],["ADI case study 237","detection method","Ground Microphone"],["ADI case study 237","detection method","Tracer Gas"],["ADI case study 237","detection method","Acoustic Listening"],["ADI case study 237","symptom","wooden lounge flooring lifting from screed, wet screed floor beneath"],["ADI case study 237","symptom","dampness and water staining on wall next to radiator"],["ADI case study 237","symptom","sound of running water stopped when main stopcock was turned off"],["ADI case study 237","system affected","cold water main pipework under bathroom floor screed"],["ADI case study 237","test result","complete pressure loss within 5 to 10 minutes at three bar mains pressure"],["ADI case study 237","test result","gurgling noise heard within bathroom floor with ground microphone"],["ADI case study 237","test result","tracer gas escaping at corner of bathroom floor beneath corner unit"],["ADI case study 237","leak location","pinhole on cold water main within bathroom floor screed"],["ADI case study 237","leak cause","apparent mechanical damage at installation leaving mains pipe flattened"],["ADI case study 237","leak cause","earlier lead solder repair over perforation reopened when disturbed"],["ADI case study 237","access made","linoleum cut back, cupboard removed and bathroom screed broken into"],["ADI case study 237","repair","6 to 8 inch section of pipe replaced with solid copper pipe and fittings"],["ADI case study 237","outcome","repaired cold water main held 3.3 bar for 20 minutes without measurable loss"],["ADI case study 237","outcome","hot water pipe in same location mechanically damaged but not currently leaking"],["ADI case study 237","recommendation","contact insurance company about drying out and remediation works"],["ADI case study 237","recommendation","protect pipework from any concrete laid during floor remediation"],["ADI case study 237","recommendation","replace small damaged section of hot water pipe to reduce future leak risk"]]},
{"id":236,"title":"underground water mains leak in Banbury (OX17 2)","summary":"ADI Leak Detection engineer Vincent Morgan investigated an underground water mains leak in Banbury, Northamptonshire (OX17 2), using acoustic listening, tracer gas, sectional isolation and pressure testing. Leak location: transition joint where the old pipework joined the new pipework. Work done: leaking joint removed and replaced. Outcome: exposed area backfilled.","triples":[["ADI case study 236","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 236","town","Banbury"],["ADI case study 236","postcode sector","OX17 2"],["ADI case study 236","county","Northamptonshire"],["ADI case study 236","country","England"],["ADI case study 236","leak type","Underground water mains leak"],["ADI case study 236","service","Water Mains Leak Detection"],["ADI case study 236","service","Underground Leak Detection"],["ADI case study 236","engineer","Vincent Morgan"],["ADI case study 236","detection method","Acoustic Listening"],["ADI case study 236","detection method","Tracer Gas"],["ADI case study 236","detection method","Sectional Isolation"],["ADI case study 236","detection method","Pressure Testing"],["ADI case study 236","symptom","external water meter constantly passing water with no water in use"],["ADI case study 236","system affected","underground pipework between the water meter and the internal stopcock"],["ADI case study 236","test result","meter at the driveway entrance passing water at 1 litre in 1 minute"],["ADI case study 236","test result","meter still passing water with the kitchen stopcock isolated"],["ADI case study 236","test result","tracer gas located the leak under a side pathway, where leaking noise was heard"],["ADI case study 236","leak location","transition joint where the old pipework joined the new pipework"],["ADI case study 236","leak location","beneath the side pathway"],["ADI case study 236","repair","leaking joint removed and replaced"],["ADI case study 236","outcome","exposed area backfilled"],["ADI case study 236","recommendation","note the underground black poly pipe is an unusual size"]]},
{"id":235,"title":"underground water mains leak in Chiswell Green (AL1 3)","summary":"ADI Leak Detection engineer Vincent Morgan investigated an underground water mains leak in Chiswell Green, Hertfordshire (AL1 3), using acoustic correlation, tracer gas, pressure testing and visual inspection. Leak location: under the concrete in front of the garage. Work done: new section of pipework installed with new fittings. Outcome: water meter stationary and a pressure test showed no further leaks.","triples":[["ADI case study 235","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 235","town","Chiswell Green"],["ADI case study 235","postcode sector","AL1 3"],["ADI case study 235","county","Hertfordshire"],["ADI case study 235","country","England"],["ADI case study 235","leak type","Underground water mains leak"],["ADI case study 235","service","Water Mains Leak Detection"],["ADI case study 235","service","Underground Leak Detection"],["ADI case study 235","engineer","Vincent Morgan"],["ADI case study 235","detection method","Acoustic Correlation"],["ADI case study 235","detection method","Tracer Gas"],["ADI case study 235","detection method","Pressure Testing"],["ADI case study 235","detection method","Visual Inspection"],["ADI case study 235","symptom","water meter constantly passing a high volume of water with no water in use"],["ADI case study 235","system affected","underground pipework from the driveway meter, under a side extension, to the kitchen"],["ADI case study 235","test result","tracer gas escaping around the front of the garage"],["ADI case study 235","test result","acoustics confirmed the leak under concrete directly in front of the garage"],["ADI case study 235","leak location","under the concrete in front of the garage"],["ADI case study 235","leak cause","pipework damaged by concrete"],["ADI case study 235","repair","new section of pipework installed with new fittings"],["ADI case study 235","outcome","water meter stationary and a pressure test showed no further leaks"],["ADI case study 235","outcome","area backfilled and the surface levelled with broken concrete"]]},
{"id":234,"title":"internal cold mains leak in Burpham (GU4 7)","summary":"ADI Leak Detection engineer Vincent Morgan investigated an internal cold mains leak in Burpham, Surrey (GU4 7), using acoustic correlation, tracer gas, a damp meter, an endoscope camera and pressure testing. Leak location: beneath the cupboard floor where the pipework enters the concrete. Work done: new section of 22mm copper pipework installed with new fittings.","triples":[["ADI case study 234","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 234","town","Burpham"],["ADI case study 234","postcode sector","GU4 7"],["ADI case study 234","county","Surrey"],["ADI case study 234","country","England"],["ADI case study 234","leak type","Internal cold mains leak"],["ADI case study 234","service","Water Mains Leak Detection"],["ADI case study 234","service","Internal Leak Detection"],["ADI case study 234","engineer","Vincent Morgan"],["ADI case study 234","detection method","Acoustic Correlation"],["ADI case study 234","detection method","Tracer Gas"],["ADI case study 234","detection method","Damp Meter"],["ADI case study 234","detection method","Endoscope Camera"],["ADI case study 234","detection method","Pressure Testing"],["ADI case study 234","symptom","leaking water heard in a hallway cupboard housing the hot water cylinder"],["ADI case study 234","symptom","external water meter letting water by with no water in use"],["ADI case study 234","system affected","cold water supply pipework"],["ADI case study 234","pipe material","copper"],["ADI case study 234","test result","high damp readings under the hallway and cupboard floor tiling"],["ADI case study 234","test result","tracer gas escaping where pipework goes into the concrete floor in the cupboard"],["ADI case study 234","leak location","beneath the cupboard floor where the pipework enters the concrete"],["ADI case study 234","repair","new section of 22mm copper pipework installed with new fittings"]]},
{"id":233,"title":"internal cold mains leak in Fordingbridge (BH24 1)","summary":"ADI Leak Detection engineer Vincent Morgan investigated an internal cold mains leak in Fordingbridge, Hampshire (BH24 1), using acoustic correlation, tracer gas, pressure testing and visual inspection. Leak location: beneath the utility room floor. Work done: new section of 15mm pipework installed with new fittings. Outcome: new pipework protected and backfilled to floor level.","triples":[["ADI case study 233","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 233","town","Fordingbridge"],["ADI case study 233","postcode sector","BH24 1"],["ADI case study 233","county","Hampshire"],["ADI case study 233","country","England"],["ADI case study 233","leak type","Internal cold mains leak"],["ADI case study 233","service","Water Mains Leak Detection"],["ADI case study 233","service","Internal Leak Detection"],["ADI case study 233","engineer","Vincent Morgan"],["ADI case study 233","detection method","Acoustic Correlation"],["ADI case study 233","detection method","Tracer Gas"],["ADI case study 233","detection method","Pressure Testing"],["ADI case study 233","detection method","Visual Inspection"],["ADI case study 233","symptom","standing water throughout the utility room on top of the laminate flooring"],["ADI case study 233","symptom","water meter constantly letting water by with no water in use"],["ADI case study 233","system affected","internal cold water supply pipework"],["ADI case study 233","pipe material","copper"],["ADI case study 233","test result","concrete floor below the laminate saturated with water"],["ADI case study 233","test result","pressure testing found a large leak on the internal cold water supply pipework"],["ADI case study 233","test result","tracer gas traced the leak to under the utility room concrete floor"],["ADI case study 233","leak location","beneath the utility room floor"],["ADI case study 233","leak location","on a fitting, with the attached 15mm copper pipe damaged"],["ADI case study 233","access made","laminate flooring removed, damaged as it ran under the skirting boards"],["ADI case study 233","access made","concrete floor removed"],["ADI case study 233","repair","new section of 15mm pipework installed with new fittings"],["ADI case study 233","outcome","new pipework protected and backfilled to floor level"]]},
{"id":232,"title":"underground water mains leak in Copthorne (RH10 1)","summary":"ADI Leak Detection engineer Vincent Morgan investigated an underground water mains leak in Copthorne, West Sussex (RH10 1), using acoustic correlation, tracer gas, pressure testing and visual inspection. Leak location: beneath the concrete pathway. Work done: new 25mm blue poly pipe installed with new fittings. Outcome: exposed area backfilled.","triples":[["ADI case study 232","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 232","town","Copthorne"],["ADI case study 232","postcode sector","RH10 1"],["ADI case study 232","county","West Sussex"],["ADI case study 232","country","England"],["ADI case study 232","leak type","Underground water mains leak"],["ADI case study 232","service","Water Mains Leak Detection"],["ADI case study 232","service","Underground Leak Detection"],["ADI case study 232","engineer","Vincent Morgan"],["ADI case study 232","detection method","Acoustic Correlation"],["ADI case study 232","detection method","Tracer Gas"],["ADI case study 232","detection method","Pressure Testing"],["ADI case study 232","detection method","Visual Inspection"],["ADI case study 232","symptom","water authority concern over high water usage"],["ADI case study 232","symptom","water meter passing water at a steady rate with no water in use"],["ADI case study 232","system affected","underground pipework between the meter on the communal pathway and the kitchen stopcock"],["ADI case study 232","pipe material","copper"],["ADI case study 232","test result","meter still passing water with the internal stopcock isolated"],["ADI case study 232","test result","pressure testing indicated no internal leaks"],["ADI case study 232","test result","tracer gas located the leak on underground pipework under the concrete pathway"],["ADI case study 232","leak location","beneath the concrete pathway"],["ADI case study 232","leak location","on a damaged section of copper pipework"],["ADI case study 232","access made","part of the concrete path removed to expose the underground pipework"],["ADI case study 232","repair","new 25mm blue poly pipe installed with new fittings"],["ADI case study 232","outcome","exposed area backfilled"]]},
{"id":231,"title":"internal cold mains leak in Beaconsfield (HP10 0)","summary":"ADI Leak Detection engineer Vincent Morgan investigated an internal cold mains leak in Beaconsfield, Buckinghamshire (HP10 0), using acoustic listening, tracer gas, a damp meter and pressure testing. Leak location: under the fixed fridge, on pipework beneath the concrete floor. Work done: damaged section removed and a new section of 15mm copper installed with new fittings.","triples":[["ADI case study 231","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 231","town","Beaconsfield"],["ADI case study 231","postcode sector","HP10 0"],["ADI case study 231","county","Buckinghamshire"],["ADI case study 231","country","England"],["ADI case study 231","leak type","Internal cold mains leak"],["ADI case study 231","service","Water Mains Leak Detection"],["ADI case study 231","service","Internal Leak Detection"],["ADI case study 231","engineer","Vincent Morgan"],["ADI case study 231","detection method","Acoustic Listening"],["ADI case study 231","detection method","Tracer Gas"],["ADI case study 231","detection method","Damp Meter"],["ADI case study 231","detection method","Pressure Testing"],["ADI case study 231","symptom","water heard constantly running with no appliances in use"],["ADI case study 231","symptom","water damage on a hallway wall and water-stained skirting around the door areas"],["ADI case study 231","system affected","internal cold water supply pipework"],["ADI case study 231","pipe material","copper"],["ADI case study 231","test result","damp in the affected areas and under the laminate flooring"],["ADI case study 231","test result","pressure loss on the internal cold water supply pipework"],["ADI case study 231","test result","running water heard where water pipes go into the concrete floor"],["ADI case study 231","leak location","under the fixed fridge, on pipework beneath the concrete floor"],["ADI case study 231","leak cause","concrete penetrating the copper cold water pipe"],["ADI case study 231","access made","fridge and water-stained lino flooring removed"],["ADI case study 231","access made","concrete removed to access the pipework"],["ADI case study 231","repair","damaged section removed and a new section of 15mm copper installed with new fittings"]]},
{"id":230,"title":"internal cold mains leak in Buckingham (MK17 0)","summary":"ADI Leak Detection engineer Vincent Morgan investigated an internal cold mains leak in Buckingham, Buckinghamshire (MK17 0), using acoustic correlation, thermal imaging, tracer gas, a damp meter and pressure testing. Leak location: beneath the kitchen floor. Work done: new section of 22mm copper pipework soldered in with new fittings.","triples":[["ADI case study 230","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 230","town","Buckingham"],["ADI case study 230","postcode sector","MK17 0"],["ADI case study 230","county","Buckinghamshire"],["ADI case study 230","country","England"],["ADI case study 230","leak type","Internal cold mains leak"],["ADI case study 230","service","Water Mains Leak Detection"],["ADI case study 230","service","Internal Leak Detection"],["ADI case study 230","engineer","Vincent Morgan"],["ADI case study 230","detection method","Acoustic Correlation"],["ADI case study 230","detection method","Thermal Imaging"],["ADI case study 230","detection method","Tracer Gas"],["ADI case study 230","detection method","Damp Meter"],["ADI case study 230","detection method","Pressure Testing"],["ADI case study 230","symptom","water on the kitchen floor and damage to walls"],["ADI case study 230","symptom","visible water damage in the kitchen and lounge"],["ADI case study 230","symptom","water meter constantly passing water with no water in use"],["ADI case study 230","system affected","internal cold water supply pipework"],["ADI case study 230","pipe material","copper"],["ADI case study 230","test result","damp detected under the kitchen and utility tiled floor and the conservatory floor"],["ADI case study 230","test result","pressure testing placed the leak on the internal cold water supply pipework"],["ADI case study 230","test result","tracer gas detected leaking under the kitchen floor"],["ADI case study 230","leak location","beneath the kitchen floor"],["ADI case study 230","leak location","on a damaged section of 22mm copper pipework"],["ADI case study 230","access made","floor tiles removed and concrete dug out"],["ADI case study 230","repair","new section of 22mm copper pipework soldered in with new fittings"]]},
{"id":229,"title":"underground water mains leak in Great Coates (DN37 0)","summary":"ADI Leak Detection engineer Scott Hardcastle investigated an underground water mains leak in Great Coates, Lincolnshire (DN37 0), using pressure testing, acoustic listening and visual inspection. Leak location: at the external rear wall. Work done: section of copper pipe through the external wall replaced and connected on both sides.","triples":[["ADI case study 229","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 229","town","Great Coates"],["ADI case study 229","postcode sector","DN37 0"],["ADI case study 229","county","Lincolnshire"],["ADI case study 229","country","England"],["ADI case study 229","leak type","Underground water mains leak"],["ADI case study 229","service","Water Mains Leak Detection"],["ADI case study 229","service","Underground Leak Detection"],["ADI case study 229","engineer","Scott Hardcastle"],["ADI case study 229","detection method","Pressure Testing"],["ADI case study 229","detection method","Acoustic Listening"],["ADI case study 229","detection method","Visual Inspection"],["ADI case study 229","property type","large detached property"],["ADI case study 229","symptom","water heard running through the mains pipework"],["ADI case study 229","symptom","running noise stops when the internal stop cock in the garage is turned off"],["ADI case study 229","symptom","combi boiler pressure maintained, no leak on the heating system"],["ADI case study 229","system affected","cold mains pipe through the rear external wall"],["ADI case study 229","pipe material","copper"],["ADI case study 229","test result","compressed air pressure of 2 bar dropped instantly when closed off"],["ADI case study 229","test result","same result with hot and cold to the boiler isolated"],["ADI case study 229","test result","leak heard at the rear where the cold mains goes through the external wall"],["ADI case study 229","leak location","at the external rear wall"],["ADI case study 229","leak cause","split in the 15mm copper pipe"],["ADI case study 229","access made","floor slates removed"],["ADI case study 229","repair","section of copper pipe through the external wall replaced and connected on both sides"],["ADI case study 229","repair","isolation valve added in the garage"],["ADI case study 229","repair","new pipe insulated"],["ADI case study 229","recommendation","lay sand on the exposed external ground and relay the tiles"]]},
{"id":228,"title":"hot water system leak in Boston (PE22 9)","summary":"ADI Leak Detection engineer Scott Hardcastle investigated a hot water system leak in Boston, Lincolnshire (PE22 9), using tracer gas, a damp meter, pressure testing and sectional isolation. Leak location: beneath the tiled kitchen floor. Work done: hot supply to the kitchen sink rerouted from a tee on the garage hot pipe. Outcome: problem fixed without causing damage to the floor.","triples":[["ADI case study 228","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 228","town","Boston"],["ADI case study 228","postcode sector","PE22 9"],["ADI case study 228","county","Lincolnshire"],["ADI case study 228","country","England"],["ADI case study 228","leak type","Hot water system leak"],["ADI case study 228","service","Hot Water Leak Detection"],["ADI case study 228","service","Internal Leak Detection"],["ADI case study 228","engineer","Scott Hardcastle"],["ADI case study 228","detection method","Tracer Gas"],["ADI case study 228","detection method","Damp Meter"],["ADI case study 228","detection method","Pressure Testing"],["ADI case study 228","detection method","Sectional Isolation"],["ADI case study 228","property type","detached bungalow"],["ADI case study 228","symptom","water company advised of a leak around the time a new boiler was fitted"],["ADI case study 228","symptom","damp patch on the kitchen wall"],["ADI case study 228","symptom","boiler at 1 bar, leak not from the heating system"],["ADI case study 228","system affected","hot water pipe"],["ADI case study 228","test result","no meter movement with the internal stop cock off, continuous running when on"],["ADI case study 228","test result","tracer gas found the leak around the area of the damp patch"],["ADI case study 228","test result","no meter movement after an isolation valve on the hot pipe was turned off"],["ADI case study 228","leak location","beneath the tiled kitchen floor"],["ADI case study 228","leak cause","change from gravity low pressure to high pressure on the hot water pipe"],["ADI case study 228","repair","hot supply to the kitchen sink rerouted from a tee on the garage hot pipe"],["ADI case study 228","repair","other side of the pipework capped"],["ADI case study 228","repair","slightly dripping stop cock gland tightened and left dry"],["ADI case study 228","outcome","problem fixed without causing damage to the floor"],["ADI case study 228","recommendation","replace the kitchen tap, which is very loose and in disrepair"],["ADI case study 228","recommendation","remove the dead leg on the hot pipe during future en suite or plumbing works"]]},
{"id":227,"title":"internal cold mains leak in Holbeach (PE12 9)","summary":"ADI Leak Detection engineer Scott Hardcastle investigated an internal cold mains leak in Holbeach, Lincolnshire (PE12 9), using acoustic correlation, pressure testing, visual inspection and sectional isolation. Leak location: beneath the kitchen floor between the island and the fridge. Work done: split section replaced with a new section of 15mm copper pipe and fittings.","triples":[["ADI case study 227","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 227","town","Holbeach"],["ADI case study 227","postcode sector","PE12 9"],["ADI case study 227","county","Lincolnshire"],["ADI case study 227","country","England"],["ADI case study 227","leak type","Internal cold mains leak"],["ADI case study 227","service","Water Mains Leak Detection"],["ADI case study 227","service","Internal Leak Detection"],["ADI case study 227","engineer","Scott Hardcastle"],["ADI case study 227","detection method","Acoustic Correlation"],["ADI case study 227","detection method","Pressure Testing"],["ADI case study 227","detection method","Visual Inspection"],["ADI case study 227","detection method","Sectional Isolation"],["ADI case study 227","property type","large detached property"],["ADI case study 227","symptom","water coming up from under the kitchen island"],["ADI case study 227","symptom","cold supply to the kitchen and downstairs bathroom capped off by the customer"],["ADI case study 227","system affected","15mm pipe feeding the fridge"],["ADI case study 227","test result","no external meter movement with the pipework capped and other pipes in use"],["ADI case study 227","test result","pressure dropping on compressed air in the cold pipe feeding kitchen and basin taps"],["ADI case study 227","test result","acoustic noise loudest between the kitchen island and the fridge"],["ADI case study 227","leak location","beneath the kitchen floor between the island and the fridge"],["ADI case study 227","leak cause","split section of 15mm pipe"],["ADI case study 227","access made","4 or 5 tiles and the concrete underneath removed"],["ADI case study 227","repair","split section replaced with a new section of 15mm copper pipe and fittings"],["ADI case study 227","repair","airing cupboard pipework reconnected with four 22mm push-fit elbows and 22mm copper pipe"],["ADI case study 227","recommendation","let the area dry out before re-screeding"],["ADI case study 227","recommendation","cover the pipes in denso tape before re-screeding"]]},
{"id":226,"title":"hot water system leak in Fakenham (PE31 8)","summary":"ADI Leak Detection engineer Scott Hardcastle investigated a hot water system leak in Fakenham, Norfolk (PE31 8), using thermal imaging, a damp meter and visual inspection. Leak location: in the utility room area. Work done: leaking section of pipework capped off beneath the kitchen sink. Outcome: leak resolved and redundant dead leg eliminated, mitigating Legionella risk.","triples":[["ADI case study 226","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 226","town","Fakenham"],["ADI case study 226","postcode sector","PE31 8"],["ADI case study 226","county","Norfolk"],["ADI case study 226","country","England"],["ADI case study 226","leak type","Hot water system leak"],["ADI case study 226","service","Hot Water Leak Detection"],["ADI case study 226","service","Internal Leak Detection"],["ADI case study 226","engineer","Scott Hardcastle"],["ADI case study 226","detection method","Thermal Imaging"],["ADI case study 226","detection method","Damp Meter"],["ADI case study 226","detection method","Visual Inspection"],["ADI case study 226","property type","large detached property"],["ADI case study 226","symptom","cold storage tank continuously refilling"],["ADI case study 226","symptom","continuous movement on the external water meter"],["ADI case study 226","system affected","long, unused dead leg of the hot water system"],["ADI case study 226","test result","hotspot in the utility room on thermal imaging"],["ADI case study 226","test result","high moisture readings at the hotspot on a damp meter"],["ADI case study 226","test result","hot cylinder pipework could not be isolated due to age and boxing in"],["ADI case study 226","leak location","in the utility room area"],["ADI case study 226","repair","leaking section of pipework capped off beneath the kitchen sink"],["ADI case study 226","outcome","leak resolved and redundant dead leg eliminated, mitigating Legionella risk"],["ADI case study 226","outcome","no damage to the floor required to resolve the leak"],["ADI case study 226","recommendation","check building insurance for Trace and Access cover, as works may be reimbursable"],["ADI case study 226","recommendation","damp specialist investigation if damp readings persist"]]},
{"id":225,"title":"underground water mains leak in Chatteris (CB6 1)","summary":"ADI Leak Detection engineer Scott Hardcastle investigated an underground water mains leak in Chatteris, Cambridgeshire (CB6 1), using tracer gas, pressure testing and visual inspection. Leak location: brass 22mm compression tee wrapped in Denso tape. Work done: tee replaced with an appropriate fitting and the garage pipework reconnected. Outcome: no further movement on the meter after testing.","triples":[["ADI case study 225","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 225","town","Chatteris"],["ADI case study 225","postcode sector","CB6 1"],["ADI case study 225","county","Cambridgeshire"],["ADI case study 225","country","England"],["ADI case study 225","leak type","Underground water mains leak"],["ADI case study 225","service","Water Mains Leak Detection"],["ADI case study 225","service","Underground Leak Detection"],["ADI case study 225","engineer","Scott Hardcastle"],["ADI case study 225","detection method","Tracer Gas"],["ADI case study 225","detection method","Pressure Testing"],["ADI case study 225","detection method","Visual Inspection"],["ADI case study 225","property type","large detached property with a detached garage"],["ADI case study 225","symptom","water loss of approximately 30 litres per hour"],["ADI case study 225","symptom","movement on the external water meter with both stopcocks turned off"],["ADI case study 225","system affected","mains pipework"],["ADI case study 225","test result","tracer gas detected bubbling out of the soil at the front of the property"],["ADI case study 225","test result","one nut on the tee loose and the olive split"],["ADI case study 225","leak location","brass 22mm compression tee wrapped in Denso tape"],["ADI case study 225","leak location","beneath the soil at the front of the property"],["ADI case study 225","leak cause","inappropriate fitting used on the mains pipework"],["ADI case study 225","access made","large hole excavated"],["ADI case study 225","repair","tee replaced with an appropriate fitting and the garage pipework reconnected"],["ADI case study 225","outcome","no further movement on the meter after testing"],["ADI case study 225","outcome","customer considering a new MDPE pipe in the future"],["ADI case study 225","recommendation","possible further inappropriate fittings elsewhere on the pipework"]]},
{"id":224,"title":"central heating leak in Market Deeping (PE6 7)","summary":"ADI Leak Detection engineer Scott Hardcastle investigated a central heating leak in Market Deeping, Lincolnshire (PE6 7), using acoustic correlation, thermal imaging, tracer gas, a damp meter and pressure testing. Leak location: in the previously disturbed area where a slight damp spot was visible. Work done: new section of 15mm copper pipe and fittings fitted.","triples":[["ADI case study 224","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 224","town","Market Deeping"],["ADI case study 224","postcode sector","PE6 7"],["ADI case study 224","county","Lincolnshire"],["ADI case study 224","country","England"],["ADI case study 224","leak type","Central heating leak"],["ADI case study 224","service","Central Heating Leak Detection"],["ADI case study 224","service","Heating Leak Detection"],["ADI case study 224","engineer","Scott Hardcastle"],["ADI case study 224","detection method","Acoustic Correlation"],["ADI case study 224","detection method","Thermal Imaging"],["ADI case study 224","detection method","Tracer Gas"],["ADI case study 224","detection method","Damp Meter"],["ADI case study 224","detection method","Pressure Testing"],["ADI case study 224","symptom","combi boiler pressure gauge at zero bar on arrival"],["ADI case study 224","symptom","boiler frequently losing pressure despite checks by several engineers"],["ADI case study 224","symptom","slight damp spot in the previously excavated area"],["ADI case study 224","system affected","15mm heating pipe"],["ADI case study 224","test result","very small pressure drop over 30 minutes on compressed air after further vacuum cycles"],["ADI case study 224","test result","damp meter reading of 999 at one spot in the hallway"],["ADI case study 224","test result","no tracer gas detected through the floor, pipe encased in a plastic cover"],["ADI case study 224","leak location","in the previously disturbed area where a slight damp spot was visible"],["ADI case study 224","access made","previously disturbed area excavated further"],["ADI case study 224","repair","new section of 15mm copper pipe and fittings fitted"],["ADI case study 224","repair","denso tape applied to protect the pipe"],["ADI case study 224","recommendation","thorough drying of the floor before re-screeding and tiling"],["ADI case study 224","recommendation","flush the heating system, as it was found to be very dirty"]]},
{"id":223,"title":"internal cold mains leak in Northampton (NN16 8)","summary":"ADI Leak Detection engineer Scott Hardcastle investigated an internal cold mains leak in Northampton, Northamptonshire (NN16 8), using acoustic listening, a damp meter, pressure testing and visual inspection. Leak location: beneath the basin under the tiled floor. Work done: damaged section of pipe removed and replaced with a new piece of 22mm copper pipe. Outcome: pressure test held following the repair.","triples":[["ADI case study 223","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 223","town","Northampton"],["ADI case study 223","postcode sector","NN16 8"],["ADI case study 223","county","Northamptonshire"],["ADI case study 223","country","England"],["ADI case study 223","leak type","Internal cold mains leak"],["ADI case study 223","service","Water Mains Leak Detection"],["ADI case study 223","service","Internal Leak Detection"],["ADI case study 223","engineer","Scott Hardcastle"],["ADI case study 223","detection method","Acoustic Listening"],["ADI case study 223","detection method","Damp Meter"],["ADI case study 223","detection method","Pressure Testing"],["ADI case study 223","detection method","Visual Inspection"],["ADI case study 223","property type","bungalow"],["ADI case study 223","symptom","leak of 3 litres per hour confirmed by the water company"],["ADI case study 223","symptom","leak confirmed as internal by a previous company"],["ADI case study 223","symptom","combi boiler pressure maintained"],["ADI case study 223","system affected","hot feed"],["ADI case study 223","pipe material","plastic"],["ADI case study 223","test result","slight hissing noise in the bathroom traced to beneath the floor under the basin"],["ADI case study 223","test result","small pressure drop on the hot feed"],["ADI case study 223","leak location","beneath the basin under the tiled floor"],["ADI case study 223","leak location","leaking push-fit coupling barely attached to the pipe"],["ADI case study 223","access made","two tiles removed"],["ADI case study 223","repair","damaged section of pipe removed and replaced with a new piece of 22mm copper pipe"],["ADI case study 223","outcome","pressure test held following the repair"],["ADI case study 223","outcome","basin refitted before leaving the property"],["ADI case study 223","recommendation","reroute the pipes from the loft space if problems occur, as they are screeded over"]]},
{"id":222,"title":"central heating leak in Boston (LN4 2)","summary":"ADI Leak Detection engineer Scott Hardcastle investigated a central heating leak in Boston, Lincolnshire (LN4 2), using thermal imaging, a damp meter, acoustic correlation and sectional isolation. Leak location: on a 15mm end-feed elbow beneath the living room floor. Work done: leaking section cut out and replaced with 15mm copper pipe and fittings.","triples":[["ADI case study 222","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 222","town","Boston"],["ADI case study 222","postcode sector","LN4 2"],["ADI case study 222","county","Lincolnshire"],["ADI case study 222","country","England"],["ADI case study 222","leak type","Central heating leak"],["ADI case study 222","service","Central Heating Leak Detection"],["ADI case study 222","service","Heating Leak Detection"],["ADI case study 222","engineer","Scott Hardcastle"],["ADI case study 222","detection method","Thermal Imaging"],["ADI case study 222","detection method","Damp Meter"],["ADI case study 222","detection method","Acoustic Correlation"],["ADI case study 222","detection method","Sectional Isolation"],["ADI case study 222","symptom","loss of pressure in the heating system over a 12-hour period"],["ADI case study 222","system affected","15mm heating pipework"],["ADI case study 222","test result","pressure held with the downstairs radiators isolated"],["ADI case study 222","test result","elevated damp readings around a living room radiator"],["ADI case study 222","test result","distinct hissing sound beneath the floorboards on acoustic equipment"],["ADI case study 222","leak location","on a 15mm end-feed elbow beneath the living room floor"],["ADI case study 222","access made","section of the floor cut away"],["ADI case study 222","repair","leaking section cut out and replaced with 15mm copper pipe and fittings"],["ADI case study 222","recommendation","allow the flooded pipe channel adequate time to dry out"],["ADI case study 222","recommendation","builder to re-board the floor and refit the laminate"]]},
{"id":221,"title":"internal cold mains leak in Mablethorpe (LN12 2)","summary":"ADI Leak Detection engineer Scott Hardcastle investigated an internal cold mains leak in Mablethorpe, Lincolnshire (LN12 2), using acoustic correlation, thermal imaging, tracer gas, pressure testing and sectional isolation. Leak location: under the rear hallway floor, where a previous leak occurred 8 years ago. Work done: pipe repaired with a small section of 15mm copper and fittings. Outcome: no more leaks on the system after the repair was tested.","triples":[["ADI case study 221","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 221","town","Mablethorpe"],["ADI case study 221","postcode sector","LN12 2"],["ADI case study 221","county","Lincolnshire"],["ADI case study 221","country","England"],["ADI case study 221","leak type","Internal cold mains leak"],["ADI case study 221","service","Water Mains Leak Detection"],["ADI case study 221","service","Internal Leak Detection"],["ADI case study 221","engineer","Scott Hardcastle"],["ADI case study 221","detection method","Acoustic Correlation"],["ADI case study 221","detection method","Thermal Imaging"],["ADI case study 221","detection method","Tracer Gas"],["ADI case study 221","detection method","Pressure Testing"],["ADI case study 221","detection method","Sectional Isolation"],["ADI case study 221","property type","detached property"],["ADI case study 221","symptom","leak rate of approximately 20 litres per hour"],["ADI case study 221","symptom","no damp visible anywhere"],["ADI case study 221","symptom","combi boiler pressure intact"],["ADI case study 221","system affected","15mm hot pipe feeding the basin in the downstairs WC"],["ADI case study 221","test result","external meter moving with the internal stop cock open, still when closed"],["ADI case study 221","test result","no pressure drop with the boiler cold feed isolated, dropping when reopened"],["ADI case study 221","test result","tracer gas coming up through the floor at the rear of the hallway"],["ADI case study 221","leak location","under the rear hallway floor, where a previous leak occurred 8 years ago"],["ADI case study 221","access made","floor broken up"],["ADI case study 221","repair","pipe repaired with a small section of 15mm copper and fittings"],["ADI case study 221","outcome","no more leaks on the system after the repair was tested"],["ADI case study 221","outcome","no movement on the external meter once everything was reinstated"],["ADI case study 221","recommendation","leave the exposed area to dry out, then cover pipes, re-screed and tile"],["ADI case study 221","recommendation","insurance to assess what needs to be done"]]},
{"id":220,"title":"internal underground mains leak in Rosedale Abbey (YO18 8)","summary":"ADI Leak Detection engineer Matthew Barron investigated an internal underground mains leak in Rosedale Abbey, North Yorkshire (YO18 8), using acoustic correlation, thermal imaging, tracer gas, a damp meter and pressure testing. Leak location: beneath the floor and ground in the lounge. Work done: repair with two 25mm equal couplers, four 25mm inserts and 25mm blue MDPE pipe.","triples":[["ADI case study 220","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 220","town","Rosedale Abbey"],["ADI case study 220","postcode sector","YO18 8"],["ADI case study 220","county","North Yorkshire"],["ADI case study 220","country","England"],["ADI case study 220","leak type","Internal underground mains leak"],["ADI case study 220","service","Water Mains Leak Detection"],["ADI case study 220","service","Underground Leak Detection"],["ADI case study 220","engineer","Matthew Barron"],["ADI case study 220","detection method","Acoustic Correlation"],["ADI case study 220","detection method","Thermal Imaging"],["ADI case study 220","detection method","Tracer Gas"],["ADI case study 220","detection method","Damp Meter"],["ADI case study 220","detection method","Pressure Testing"],["ADI case study 220","symptom","noise on the pipework in the kitchen"],["ADI case study 220","symptom","water supplier had notified the customer of a leak on the water supply"],["ADI case study 220","system affected","water mains supply pipe"],["ADI case study 220","test result","pressure test on the water mains supply failed"],["ADI case study 220","test result","tracer gas detected in the lounge"],["ADI case study 220","test result","water movement found acoustically in the lounge"],["ADI case study 220","leak location","beneath the floor and ground in the lounge"],["ADI case study 220","access made","floor and ground in the lounge excavated"],["ADI case study 220","repair","repair with two 25mm equal couplers, four 25mm inserts and 25mm blue MDPE pipe"],["ADI case study 220","recommendation","full replacement of the main water supply line, as incoming pressure exceeds pipework capacity"],["ADI case study 220","recommendation","reroute the new line via the downstairs bathroom plumbing and cap the original entry point"],["ADI case study 220","recommendation","repair all damage to the lounge floor"]]},
{"id":219,"title":"internal cold mains leak in Stoke-on-Trent (ST3 4)","summary":"ADI Leak Detection engineer Matthew Barron investigated an internal cold mains leak in Stoke-on-Trent, Staffordshire (ST3 4), using thermal imaging, tracer gas, a damp meter, an endoscope camera, pressure testing, leak dye and visual inspection. Leak location: in the kitchen wall. Work done: copper pipe repaired with two 15mm speed fit couplings and 15mm plastic pipe.","triples":[["ADI case study 219","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 219","town","Stoke-on-Trent"],["ADI case study 219","postcode sector","ST3 4"],["ADI case study 219","county","Staffordshire"],["ADI case study 219","country","England"],["ADI case study 219","leak type","Internal cold mains leak"],["ADI case study 219","service","Water Mains Leak Detection"],["ADI case study 219","service","Internal Leak Detection"],["ADI case study 219","engineer","Matthew Barron"],["ADI case study 219","detection method","Thermal Imaging"],["ADI case study 219","detection method","Tracer Gas"],["ADI case study 219","detection method","Damp Meter"],["ADI case study 219","detection method","Endoscope Camera"],["ADI case study 219","detection method","Pressure Testing"],["ADI case study 219","detection method","Leak Dye"],["ADI case study 219","detection method","Visual Inspection"],["ADI case study 219","symptom","water damage to the bedroom wall and the kitchen wall and ceiling"],["ADI case study 219","symptom","no drop in boiler pressure"],["ADI case study 219","system affected","internal pipework"],["ADI case study 219","pipe material","copper"],["ADI case study 219","test result","pressure test on the internal pipework failed"],["ADI case study 219","test result","tracer gas detected in the upstairs bathroom by the toilet"],["ADI case study 219","test result","no dye water found, suggesting no leaks on the bathroom waste pipes above"],["ADI case study 219","leak location","in the kitchen wall"],["ADI case study 219","access made","access made to the kitchen wall"],["ADI case study 219","repair","copper pipe repaired with two 15mm speed fit couplings and 15mm plastic pipe"],["ADI case study 219","recommendation","drying and restoration programme for the water damaged walls"],["ADI case study 219","recommendation","repair all damage made to the boxing"]]},
{"id":218,"title":"underground water mains leak in Wakefield (WF1 2)","summary":"ADI Leak Detection engineer Matthew Barron investigated an underground water mains leak in Wakefield, West Yorkshire (WF1 2), using pressure testing, tracer gas, acoustic correlation and visual inspection. Leak location: on the lead pipe at the point where it was filled to cap it off. Work done: repair with 25mm MDPE pipe, 20-27mm x 25mm universal coupling and 25mm end cap.","triples":[["ADI case study 218","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 218","town","Wakefield"],["ADI case study 218","postcode sector","WF1 2"],["ADI case study 218","county","West Yorkshire"],["ADI case study 218","country","England"],["ADI case study 218","leak type","Underground water mains leak"],["ADI case study 218","service","Water Mains Leak Detection"],["ADI case study 218","service","Underground Leak Detection"],["ADI case study 218","engineer","Matthew Barron"],["ADI case study 218","detection method","Pressure Testing"],["ADI case study 218","detection method","Tracer Gas"],["ADI case study 218","detection method","Acoustic Correlation"],["ADI case study 218","detection method","Visual Inspection"],["ADI case study 218","symptom","water streaming out of the wall by the back patio area"],["ADI case study 218","symptom","no loss of pressure on the boiler"],["ADI case study 218","system affected","external water mains pipework"],["ADI case study 218","pipe material","lead"],["ADI case study 218","test result","internal pipework held 4.4 bar for 20 minutes with no drop"],["ADI case study 218","test result","pressure test on the external water mains pipework failed"],["ADI case study 218","test result","tracer gas detected in multiple areas on the patio"],["ADI case study 218","leak location","on the lead pipe at the point where it was filled to cap it off"],["ADI case study 218","leak location","under the concrete patio"],["ADI case study 218","access made","section of the concrete patio excavated"],["ADI case study 218","repair","repair with 25mm MDPE pipe, 20-27mm x 25mm universal coupling and 25mm end cap"],["ADI case study 218","recommendation","allow 1-2 weeks for the ground to settle before repairing the concrete patio"]]},
{"id":217,"title":"underground water mains leak in Liverpool (L25 0)","summary":"ADI Leak Detection engineer Matthew Barron investigated an underground water mains leak in Liverpool, Merseyside (L25 0), using acoustic correlation, thermal imaging, tracer gas, a damp meter and pressure testing. Leak location: at the internal stop cock. Work done: copper rings and internal stop cock replaced with new ones. Outcome: post-repair pressure test held 2.4 bar for 20 minutes with no drop.","triples":[["ADI case study 217","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 217","town","Liverpool"],["ADI case study 217","postcode sector","L25 0"],["ADI case study 217","county","Merseyside"],["ADI case study 217","country","England"],["ADI case study 217","leak type","Underground water mains leak"],["ADI case study 217","service","Water Mains Leak Detection"],["ADI case study 217","service","Underground Leak Detection"],["ADI case study 217","engineer","Matthew Barron"],["ADI case study 217","detection method","Acoustic Correlation"],["ADI case study 217","detection method","Thermal Imaging"],["ADI case study 217","detection method","Tracer Gas"],["ADI case study 217","detection method","Damp Meter"],["ADI case study 217","detection method","Pressure Testing"],["ADI case study 217","symptom","water damage shown on arrival"],["ADI case study 217","system affected","internal pipework"],["ADI case study 217","test result","pressure test at 2.4 bar for 15 minutes dropped to 1.4 bar"],["ADI case study 217","test result","tracer gas detected at the kitchen mixer and the internal stop cock"],["ADI case study 217","test result","with the kitchen mixer isolated, tracer gas detected at the internal stop cock"],["ADI case study 217","leak location","at the internal stop cock"],["ADI case study 217","leak cause","fitting overtightened by a previous plumber, which crimped the ring incorrectly"],["ADI case study 217","repair","copper rings and internal stop cock replaced with new ones"],["ADI case study 217","outcome","post-repair pressure test held 2.4 bar for 20 minutes with no drop"],["ADI case study 217","outcome","stop cock now holding, but engineer unsure it will hold long term"],["ADI case study 217","recommendation","replace the mains supply, an old lead sleeve with copper pipe"],["ADI case study 217","recommendation","drying and restoration contractor for the laundry room floor due to high moisture readings"],["ADI case study 217","recommendation","repair the boxing that hides the pipework"]]},
{"id":216,"title":"internal cold mains leak in Bolton (BL2 2)","summary":"ADI Leak Detection engineer Matthew Barron investigated an internal cold mains leak in Bolton, Greater Manchester (BL2 2), using acoustic correlation, thermal imaging, tracer gas, a damp meter and pressure testing. Leak location: beneath the flooring in the corner of the lounge area. Work done: copper pipe cut out and replaced with 15mm plastic pipe. Outcome: repair carried out and the pipework pressure tested.","triples":[["ADI case study 216","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 216","town","Bolton"],["ADI case study 216","postcode sector","BL2 2"],["ADI case study 216","county","Greater Manchester"],["ADI case study 216","country","England"],["ADI case study 216","leak type","Internal cold mains leak"],["ADI case study 216","service","Water Mains Leak Detection"],["ADI case study 216","service","Underground Leak Detection"],["ADI case study 216","engineer","Matthew Barron"],["ADI case study 216","detection method","Acoustic Correlation"],["ADI case study 216","detection method","Thermal Imaging"],["ADI case study 216","detection method","Tracer Gas"],["ADI case study 216","detection method","Damp Meter"],["ADI case study 216","detection method","Pressure Testing"],["ADI case study 216","symptom","leak on the mains water supply reported by the customer"],["ADI case study 216","symptom","no drop in boiler pressure reported"],["ADI case study 216","system affected","mains water supply pipe"],["ADI case study 216","pipe material","copper"],["ADI case study 216","test result","high moisture levels in the lounge floor and the garage floor"],["ADI case study 216","test result","tracer gas detected in the garage"],["ADI case study 216","test result","water movement found acoustically in the garage and at the back of the lounge"],["ADI case study 216","leak location","beneath the flooring in the corner of the lounge area"],["ADI case study 216","access made","carpet and flooring lifted in the corner of the lounge area"],["ADI case study 216","repair","copper pipe cut out and replaced with 15mm plastic pipe"],["ADI case study 216","repair","new pipe joined to the copper with a 15mm brass compression fitting"],["ADI case study 216","outcome","repair carried out and the pipework pressure tested"],["ADI case study 216","recommendation","drying and restoration programme for the water damaged wooden flooring"]]},
{"id":215,"title":"internal cold mains leak in Faringdon (SN7 7)","summary":"ADI Leak Detection engineer Kyle Storkey investigated an internal cold mains leak in Faringdon, Oxfordshire (SN7 7), using acoustic correlation, thermal imaging, a damp meter, visual inspection and sectional isolation. Leak location: two leaks on the water pipework in the concrete slab area. Work done: both leaks repaired with 15mm plastic pipe and fittings.","triples":[["ADI case study 215","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 215","town","Faringdon"],["ADI case study 215","postcode sector","SN7 7"],["ADI case study 215","county","Oxfordshire"],["ADI case study 215","country","England"],["ADI case study 215","leak type","Internal cold mains leak"],["ADI case study 215","service","Water Mains Leak Detection"],["ADI case study 215","service","Internal Leak Detection"],["ADI case study 215","engineer","Kyle Storkey"],["ADI case study 215","detection method","Acoustic Correlation"],["ADI case study 215","detection method","Thermal Imaging"],["ADI case study 215","detection method","Damp Meter"],["ADI case study 215","detection method","Visual Inspection"],["ADI case study 215","detection method","Sectional Isolation"],["ADI case study 215","symptom","water staining on the concrete slab in the utility room"],["ADI case study 215","symptom","movement on the water meter"],["ADI case study 215","symptom","water pooling below the utility room sink where a previous repair had been made"],["ADI case study 215","system affected","cold water pipe"],["ADI case study 215","system affected","hot water pipe"],["ADI case study 215","test result","no pressure drop on the combination boiler, reading 1.1 bar"],["ADI case study 215","test result","audible evidence of a leak source from the acoustic survey"],["ADI case study 215","test result","anomaly found with thermal imaging"],["ADI case study 215","leak location","two leaks on the water pipework in the concrete slab area"],["ADI case study 215","access made","floor cupboards, counter and sink area in the utility room removed"],["ADI case study 215","access made","access made to the concrete slab area"],["ADI case study 215","repair","both leaks repaired with 15mm plastic pipe and fittings"],["ADI case study 215","repair","plastic used as customer is looking to replace pipes with three leaks in one metre"],["ADI case study 215","recommendation","strip out the water damaged areas"],["ADI case study 215","recommendation","install a drying programme once stripped out"],["ADI case study 215","recommendation","reinstatement and redecorating once a drying certificate is issued"]]},
{"id":214,"title":"hot water system leak in Gerrards Cross (UB9 5)","summary":"ADI Leak Detection engineer Kyle Storkey investigated a hot water system leak in Gerrards Cross, Buckinghamshire (UB9 5), using acoustic correlation, thermal imaging, a damp meter, an endoscope camera, leak dye, visual inspection and sectional isolation. Leak location: flexi hose to copper connection behind the shower tile work. Work done: flexi hose tightened and the leak fixed. Outcome: shower out of use with both feeding valves isolated due to the tile access.","triples":[["ADI case study 214","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 214","town","Gerrards Cross"],["ADI case study 214","postcode sector","UB9 5"],["ADI case study 214","county","Buckinghamshire"],["ADI case study 214","country","England"],["ADI case study 214","leak type","Hot water system leak"],["ADI case study 214","service","Hot Water Leak Detection"],["ADI case study 214","service","Internal Leak Detection"],["ADI case study 214","engineer","Kyle Storkey"],["ADI case study 214","detection method","Acoustic Correlation"],["ADI case study 214","detection method","Thermal Imaging"],["ADI case study 214","detection method","Damp Meter"],["ADI case study 214","detection method","Endoscope Camera"],["ADI case study 214","detection method","Leak Dye"],["ADI case study 214","detection method","Visual Inspection"],["ADI case study 214","detection method","Sectional Isolation"],["ADI case study 214","symptom","water damage in line from the second floor running downwards"],["ADI case study 214","symptom","water damage to ceilings and walls on the ground, first and second floors"],["ADI case study 214","symptom","constant drip from the first floor en-suite ceiling, which had collapsed in"],["ADI case study 214","system affected","second floor en-suite shower pipework"],["ADI case study 214","test result","constant water flow from the wooden floor panels of the second floor en-suite"],["ADI case study 214","test result","second floor en-suite waste pipes dyed for 10 minutes with no dye escaping below"],["ADI case study 214","test result","no escape from the radiator pipe or fitting, water tracking from the shower leak"],["ADI case study 214","leak location","flexi hose to copper connection behind the shower tile work"],["ADI case study 214","access made","collapsed first floor en-suite ceiling opened up further"],["ADI case study 214","access made","access made to the shower tile work"],["ADI case study 214","repair","flexi hose tightened and the leak fixed"],["ADI case study 214","outcome","shower out of use with both feeding valves isolated due to the tile access"],["ADI case study 214","recommendation","stripout of both en-suites, bedroom ceiling, landing wall and ground floor ceiling and walls"],["ADI case study 214","recommendation","drying equipment in the relevant rooms for a drying programme after stripout"],["ADI case study 214","recommendation","sanitise all affected rooms to remove mould growth"]]},
{"id":213,"title":"drainage leak in Camberley (GU15 2)","summary":"ADI Leak Detection engineer Kyle Storkey investigated a drainage leak in Camberley, Surrey (GU15 2), using acoustic correlation, thermal imaging, a damp meter, leak dye and visual inspection. Leak location: on the shower waste trap, found by dye testing the shower waste. Work done: repair made using a 40mm waste trap. Outcome: blown shower tiles tented so the shower cubicle can still be used.","triples":[["ADI case study 213","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 213","town","Camberley"],["ADI case study 213","postcode sector","GU15 2"],["ADI case study 213","county","Surrey"],["ADI case study 213","country","England"],["ADI case study 213","leak type","Drainage leak"],["ADI case study 213","service","Drainage Leak Detection"],["ADI case study 213","engineer","Kyle Storkey"],["ADI case study 213","detection method","Acoustic Correlation"],["ADI case study 213","detection method","Thermal Imaging"],["ADI case study 213","detection method","Damp Meter"],["ADI case study 213","detection method","Leak Dye"],["ADI case study 213","detection method","Visual Inspection"],["ADI case study 213","symptom","damp patches on the walls of the downstairs bathroom"],["ADI case study 213","symptom","discoloured grouting on the bathroom tiles"],["ADI case study 213","symptom","dark stains on the wooden flooring behind the toilet access panel"],["ADI case study 213","system affected","shower waste"],["ADI case study 213","test result","elevated moisture readings on the walls and floors of the downstairs bathroom"],["ADI case study 213","test result","no audible evidence of a leak on the hot and cold water pipework"],["ADI case study 213","test result","water pooling below the shower waste"],["ADI case study 213","leak location","on the shower waste trap, found by dye testing the shower waste"],["ADI case study 213","access made","access made to the shower panel"],["ADI case study 213","repair","repair made using a 40mm waste trap"],["ADI case study 213","outcome","blown shower tiles tented so the shower cubicle can still be used"],["ADI case study 213","recommendation","stripout and drying programme for the downstairs bathroom and room"],["ADI case study 213","recommendation","reinstatement and redecorating once the property is dry"]]},
{"id":212,"title":"central heating leak in Billingshurst (RH13 8)","summary":"ADI Leak Detection engineer Kyle Storkey investigated a central heating leak in Billingshurst, West Sussex (RH13 8), using thermal imaging, a damp meter, tracer gas and acoustic correlation. Leak location: beneath the bathroom floor. Work done: temporary repair with a 22mm x 15mm reducer, 15mm fittings and 15mm plastic pipe.","triples":[["ADI case study 212","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 212","town","Billingshurst"],["ADI case study 212","postcode sector","RH13 8"],["ADI case study 212","county","West Sussex"],["ADI case study 212","country","England"],["ADI case study 212","leak type","Central heating leak"],["ADI case study 212","service","Central Heating Leak Detection"],["ADI case study 212","service","Heating Leak Detection"],["ADI case study 212","engineer","Kyle Storkey"],["ADI case study 212","detection method","Thermal Imaging"],["ADI case study 212","detection method","Damp Meter"],["ADI case study 212","detection method","Tracer Gas"],["ADI case study 212","detection method","Acoustic Correlation"],["ADI case study 212","symptom","heating system pressure below one bar with the heating turned on"],["ADI case study 212","system affected","22mm central heating pipework"],["ADI case study 212","test result","system topped up to 2 bar and pressure dropped after 10 minutes"],["ADI case study 212","test result","elevated moisture readings in the downstairs bathroom"],["ADI case study 212","test result","large amounts of tracer gas detected in the corner of the bathroom"],["ADI case study 212","leak location","beneath the bathroom floor"],["ADI case study 212","access made","toilet removed and access made to the tile work and concrete floor"],["ADI case study 212","repair","temporary repair with a 22mm x 15mm reducer, 15mm fittings and 15mm plastic pipe"],["ADI case study 212","recommendation","permanent repair to be carried out in copper"],["ADI case study 212","recommendation","replace the drain off valve at the back of the utility room"],["ADI case study 212","recommendation","dry out both affected rooms"]]},
{"id":211,"title":"hot water system leak in Blandford Forum (DT11 9)","summary":"ADI Leak Detection engineer Kyle Storkey investigated a hot water system leak in Blandford Forum, Dorset (DT11 9), using acoustic correlation, thermal imaging, tracer gas, a damp meter, leak dye and visual inspection. Leak location: hot water pipe under the tiles and concrete slab in the utility room.","triples":[["ADI case study 211","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 211","town","Blandford Forum"],["ADI case study 211","postcode sector","DT11 9"],["ADI case study 211","county","Dorset"],["ADI case study 211","country","England"],["ADI case study 211","leak type","Hot water system leak"],["ADI case study 211","service","Hot Water Leak Detection"],["ADI case study 211","service","Internal Leak Detection"],["ADI case study 211","engineer","Kyle Storkey"],["ADI case study 211","detection method","Acoustic Correlation"],["ADI case study 211","detection method","Thermal Imaging"],["ADI case study 211","detection method","Tracer Gas"],["ADI case study 211","detection method","Damp Meter"],["ADI case study 211","detection method","Leak Dye"],["ADI case study 211","detection method","Visual Inspection"],["ADI case study 211","symptom","water damage in various rooms"],["ADI case study 211","symptom","areas not drying out after a boiler condensate pipe leak was repaired"],["ADI case study 211","system affected","hot water pipe"],["ADI case study 211","test result","movement on the water meter indicating a leak"],["ADI case study 211","test result","large amounts of tracer gas at the utility room floor"],["ADI case study 211","test result","leak on the dyed pipe got worse when hot water was opened"],["ADI case study 211","leak location","hot water pipe under the tiles and concrete slab in the utility room"],["ADI case study 211","access made","utility room tiles and concrete slab opened up"],["ADI case study 211","recommendation","full strip out of the affected rooms"],["ADI case study 211","recommendation","install a drying programme"],["ADI case study 211","recommendation","reinstate and redecorate once dried"]]},
{"id":210,"title":"underground water mains leak in Bursledon (SO31 8)","summary":"ADI Leak Detection engineer Kyle Storkey investigated an underground water mains leak in Bursledon, Hampshire (SO31 8), using acoustic correlation, tracer gas, pressure testing and sectional isolation. Leak location: black poly pipe under the hedge near the water meter. Work done: repaired with 20mm MDPE fittings and pipework.","triples":[["ADI case study 210","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 210","town","Bursledon"],["ADI case study 210","postcode sector","SO31 8"],["ADI case study 210","county","Hampshire"],["ADI case study 210","country","England"],["ADI case study 210","leak type","Underground water mains leak"],["ADI case study 210","service","Water Mains Leak Detection"],["ADI case study 210","service","Underground Leak Detection"],["ADI case study 210","engineer","Kyle Storkey"],["ADI case study 210","detection method","Acoustic Correlation"],["ADI case study 210","detection method","Tracer Gas"],["ADI case study 210","detection method","Pressure Testing"],["ADI case study 210","detection method","Sectional Isolation"],["ADI case study 210","symptom","consistent movement on the external water meter"],["ADI case study 210","system affected","external water mains supply"],["ADI case study 210","pipe material","black poly"],["ADI case study 210","test result","meter still moving with the internal stopcock isolated, indicating an external mains leak"],["ADI case study 210","test result","consistent pressure drop with the system at 2 bar"],["ADI case study 210","test result","strong tracer gas presence in the hedge area near the water meter"],["ADI case study 210","leak location","black poly pipe under the hedge near the water meter"],["ADI case study 210","access made","hedge removed and soil excavated"],["ADI case study 210","repair","repaired with 20mm MDPE fittings and pipework"],["ADI case study 210","recommendation","tell the water company the leak has been located and repaired"],["ADI case study 210","recommendation","keep monitoring the water meter for any further fluctuations"]]},
{"id":209,"title":"central heating leak in Bracknell (SL4 4)","summary":"ADI Leak Detection engineer Kyle Storkey investigated a central heating leak in Bracknell, Berkshire (SL4 4), using thermal imaging, a damp meter, tracer gas, pressure testing and visual inspection. Leak location: pressure relief valve outlet. Work done: new pressure relief valve installed.","triples":[["ADI case study 209","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 209","town","Bracknell"],["ADI case study 209","postcode sector","SL4 4"],["ADI case study 209","county","Berkshire"],["ADI case study 209","country","England"],["ADI case study 209","leak type","Central heating leak"],["ADI case study 209","service","Central Heating Leak Detection"],["ADI case study 209","service","Heating Leak Detection"],["ADI case study 209","engineer","Kyle Storkey"],["ADI case study 209","detection method","Thermal Imaging"],["ADI case study 209","detection method","Damp Meter"],["ADI case study 209","detection method","Tracer Gas"],["ADI case study 209","detection method","Pressure Testing"],["ADI case study 209","detection method","Visual Inspection"],["ADI case study 209","symptom","constant recharging of the boiler pressure by the homeowner"],["ADI case study 209","symptom","no water damaged areas in the property"],["ADI case study 209","system affected","central heating pressure relief valve"],["ADI case study 209","test result","water escape at the PRV outlet"],["ADI case study 209","test result","tracer gas escaping from the PRV outlet"],["ADI case study 209","test result","system held 1 bar for 30 minutes and 2 bar for 45 minutes"],["ADI case study 209","leak location","pressure relief valve outlet"],["ADI case study 209","repair","new pressure relief valve installed"],["ADI case study 209","repair","new thermostatic valve fitted on the front door radiator as it was passing"],["ADI case study 209","recommendation","monitor the boiler pressure"]]},
{"id":208,"title":"underfloor heating leak in Marlborough (SN9 5)","summary":"ADI Leak Detection engineer James Bexter investigated an underfloor heating leak in Marlborough, Wiltshire (SN9 5), using acoustic correlation, pressure testing and visual inspection. Leak location: buried pipework in the corner of the office room. Work done: temporary repair only, as the buried pipework is plastic. Outcome: no warranty on the temporary repair, which the customer understands.","triples":[["ADI case study 208","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 208","town","Marlborough"],["ADI case study 208","postcode sector","SN9 5"],["ADI case study 208","county","Wiltshire"],["ADI case study 208","country","England"],["ADI case study 208","leak type","Underfloor heating leak"],["ADI case study 208","service","Underfloor Heating Leak Detection"],["ADI case study 208","service","Heating Leak Detection"],["ADI case study 208","engineer","James Bexter"],["ADI case study 208","detection method","Acoustic Correlation"],["ADI case study 208","detection method","Pressure Testing"],["ADI case study 208","detection method","Visual Inspection"],["ADI case study 208","system affected","downstairs underfloor heating"],["ADI case study 208","pipe material","22mm Speedfit PEX"],["ADI case study 208","test result","no pressure held at all with air at 2 bar"],["ADI case study 208","test result","air escaping heard on the other side of the wall from the test point"],["ADI case study 208","leak location","buried pipework in the corner of the office room"],["ADI case study 208","leak cause","splits in the pipe"],["ADI case study 208","access made","ground exposed in the corner of the office room"],["ADI case study 208","repair","temporary repair only, as the buried pipework is plastic"],["ADI case study 208","repair","remaining pipework through the wall to the garage redone in protected copper"],["ADI case study 208","outcome","no warranty on the temporary repair, which the customer understands"],["ADI case study 208","outcome","boiler flow temperature turned down"],["ADI case study 208","recommendation","re-pipe the flow and return to the manifold in copper, a large job"],["ADI case study 208","recommendation","fit automatic air vents at pipework high points near the boiler"]]},
{"id":207,"title":"underground water mains leak in Gloucester (GL4 4)","summary":"ADI Leak Detection engineer James Bexter investigated an underground water mains leak in Gloucester, Gloucestershire (GL4 4), using acoustic listening, visual inspection and pressure testing. Leak location: water mains pipe in the same area as a previous repair. Work done: damaged section of pipe cut out and replaced. Outcome: pipework passed testing after the repair.","triples":[["ADI case study 207","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 207","town","Gloucester"],["ADI case study 207","postcode sector","GL4 4"],["ADI case study 207","county","Gloucestershire"],["ADI case study 207","country","England"],["ADI case study 207","leak type","Underground water mains leak"],["ADI case study 207","service","Water Mains Leak Detection"],["ADI case study 207","service","Underground Leak Detection"],["ADI case study 207","engineer","James Bexter"],["ADI case study 207","detection method","Acoustic Listening"],["ADI case study 207","detection method","Visual Inspection"],["ADI case study 207","detection method","Pressure Testing"],["ADI case study 207","property type","detached 1960s property"],["ADI case study 207","symptom","water meter kept spinning with the internal stopcock isolated"],["ADI case study 207","system affected","incoming water mains"],["ADI case study 207","test result","previous repair in the same area found intact and not leaking"],["ADI case study 207","leak location","water mains pipe in the same area as a previous repair"],["ADI case study 207","access made","ground excavated to expose the water mains pipe"],["ADI case study 207","repair","damaged section of pipe cut out and replaced"],["ADI case study 207","repair","previous repair incorporated into the replacement to reduce the number of joints"],["ADI case study 207","outcome","pipework passed testing after the repair"]]},
{"id":206,"title":"hot water system leak in Bath (BS31 1)","summary":"ADI Leak Detection engineer James Bexter investigated a hot water system leak in Bath, Somerset (BS31 1), using acoustic correlation, tracer gas, pressure testing and visual inspection. Leak location: leak area downstairs. Work done: old hot pipework capped off and hot tap feed connected to new hot feed.","triples":[["ADI case study 206","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 206","town","Bath"],["ADI case study 206","postcode sector","BS31 1"],["ADI case study 206","county","Somerset"],["ADI case study 206","country","England"],["ADI case study 206","leak type","Hot water system leak"],["ADI case study 206","service","Hot Water Leak Detection"],["ADI case study 206","service","Internal Leak Detection"],["ADI case study 206","engineer","James Bexter"],["ADI case study 206","detection method","Acoustic Correlation"],["ADI case study 206","detection method","Tracer Gas"],["ADI case study 206","detection method","Pressure Testing"],["ADI case study 206","detection method","Visual Inspection"],["ADI case study 206","property type","first-floor flat"],["ADI case study 206","symptom","meter showing a small leak on arrival"],["ADI case study 206","system affected","hot feed pipework"],["ADI case study 206","system affected","old hot water pipework from a previous open vent cylinder left in the ground"],["ADI case study 206","test result","hot feed pressurised to 2 bar showed a gradual pressure drop"],["ADI case study 206","test result","water heard with acoustics on the hallway and bathroom floors"],["ADI case study 206","test result","tracer gas at 2.4 bar traced to the leak area downstairs"],["ADI case study 206","leak location","leak area downstairs"],["ADI case study 206","repair","old hot pipework capped off and hot tap feed connected to new hot feed"]]},
{"id":205,"title":"underground water mains leak in Padstow (PL27 7)","summary":"ADI Leak Detection engineer James Bexter investigated an underground water mains leak in Padstow, Cornwall (PL27 7), using acoustic correlation, tracer gas, pressure testing, sectional isolation and visual inspection. Leak location: further down the side of the house, about 2 metres from the first excavation. Work done: leaking section replaced with blue MDPE using specialist fittings for the non-standard pipe size.","triples":[["ADI case study 205","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 205","town","Padstow"],["ADI case study 205","postcode sector","PL27 7"],["ADI case study 205","county","Cornwall"],["ADI case study 205","country","England"],["ADI case study 205","leak type","Underground water mains leak"],["ADI case study 205","service","Water Mains Leak Detection"],["ADI case study 205","service","Underground Leak Detection"],["ADI case study 205","engineer","James Bexter"],["ADI case study 205","detection method","Acoustic Correlation"],["ADI case study 205","detection method","Tracer Gas"],["ADI case study 205","detection method","Pressure Testing"],["ADI case study 205","detection method","Sectional Isolation"],["ADI case study 205","detection method","Visual Inspection"],["ADI case study 205","property type","house"],["ADI case study 205","symptom","estimated leak rate of about 1 litre per minute"],["ADI case study 205","system affected","external mains supply, which also feeds two garden taps before the internal stopcock"],["ADI case study 205","system affected","mains pipe of non-standard size"],["ADI case study 205","test result","stopcock isolation test placed the leak on the external mains pipework"],["ADI case study 205","test result","nothing significant detected by acoustics around the property"],["ADI case study 205","test result","tracer gas at 2 bar detected near the internal stopcock at the rear"],["ADI case study 205","leak location","further down the side of the house, about 2 metres from the first excavation"],["ADI case study 205","access made","exploratory excavation near the point of entry, where no leak was found"],["ADI case study 205","access made","area exposed and the leak visually confirmed"],["ADI case study 205","repair","leaking section replaced with blue MDPE using specialist fittings for the non-standard pipe size"],["ADI case study 205","recommendation","dig the pipe down to a minimum depth of 750 mm for frost protection"]]},
{"id":204,"title":"central heating leak in Exeter (EX9 7)","summary":"ADI Leak Detection engineer James Bexter investigated a central heating leak in Exeter, Devon (EX9 7), using acoustic correlation, thermal imaging, tracer gas, a damp meter and an endoscope camera. Leak location: fitting inside the kitchen boxing. Work done: damaged fitting replaced, pipework cleaned up and cut back, new inserts installed.","triples":[["ADI case study 204","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 204","town","Exeter"],["ADI case study 204","postcode sector","EX9 7"],["ADI case study 204","county","Devon"],["ADI case study 204","country","England"],["ADI case study 204","leak type","Central heating leak"],["ADI case study 204","service","Central Heating Leak Detection"],["ADI case study 204","service","Heating Leak Detection"],["ADI case study 204","engineer","James Bexter"],["ADI case study 204","detection method","Acoustic Correlation"],["ADI case study 204","detection method","Thermal Imaging"],["ADI case study 204","detection method","Tracer Gas"],["ADI case study 204","detection method","Damp Meter"],["ADI case study 204","detection method","Endoscope Camera"],["ADI case study 204","property type","barn conversion"],["ADI case study 204","symptom","boiler pressure reading zero on arrival"],["ADI case study 204","system affected","central heating pipes in kitchen boxing beside a soil pipe"],["ADI case study 204","system affected","heating system with 12 radiators and towel rails"],["ADI case study 204","test result","no high damp readings across the ground floor"],["ADI case study 204","test result","intermittent tracer gas readings near the kitchen sink, not conclusive enough to excavate"],["ADI case study 204","test result","gas sniffer readings present straight away at the hole in the boxing"],["ADI case study 204","leak location","fitting inside the kitchen boxing"],["ADI case study 204","leak cause","fitting that appeared to have come apart"],["ADI case study 204","access made","small previously filled hole knocked through for an endoscope camera"],["ADI case study 204","access made","boxing cut open to reach the pipework"],["ADI case study 204","repair","damaged fitting replaced, pipework cleaned up and cut back, new inserts installed"],["ADI case study 204","recommendation","flush the system and add new inhibitor, as the system water is very dirty"]]},
{"id":203,"title":"central heating leak in Chepstow (NP16 7)","summary":"ADI Leak Detection engineer James Bexter investigated a central heating leak in Chepstow, Gwent (NP16 7), using acoustic correlation, tracer gas, a damp meter, an endoscope camera and pressure testing. Leak location: Speedfit elbow behind the en-suite wall. Work done: damaged fitting replaced.","triples":[["ADI case study 203","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 203","town","Chepstow"],["ADI case study 203","postcode sector","NP16 7"],["ADI case study 203","county","Gwent"],["ADI case study 203","country","England"],["ADI case study 203","leak type","Central heating leak"],["ADI case study 203","service","Central Heating Leak Detection"],["ADI case study 203","service","Heating Leak Detection"],["ADI case study 203","engineer","James Bexter"],["ADI case study 203","detection method","Acoustic Correlation"],["ADI case study 203","detection method","Tracer Gas"],["ADI case study 203","detection method","Damp Meter"],["ADI case study 203","detection method","Endoscope Camera"],["ADI case study 203","detection method","Pressure Testing"],["ADI case study 203","property type","house"],["ADI case study 203","system affected","13-radiator heating system"],["ADI case study 203","test result","1.2 bar air test dropped half a bar over 30 minutes"],["ADI case study 203","test result","tracer gas at en-suite radiator pipework and behind a large unit beyond the wall"],["ADI case study 203","test result","high damp readings on the other side of the wall to the bathroom"],["ADI case study 203","leak location","Speedfit elbow behind the en-suite wall"],["ADI case study 203","leak cause","Speedfit elbow apparently chewed by a rodent"],["ADI case study 203","access made","small hole made in the plasterboard for the endoscope camera"],["ADI case study 203","access made","larger hole made in the wall to expose the leak"],["ADI case study 203","repair","damaged fitting replaced"],["ADI case study 203","recommendation","have pest control measures looked at"]]},
{"id":202,"title":"central heating leak in South Molton (EX36 4)","summary":"ADI Leak Detection engineer James Bexter investigated a central heating leak in South Molton, Devon (EX36 4), using thermal imaging, a damp meter, pressure testing, tracer gas and acoustic correlation. Leak location: under the entrance hall screed. Work done: leaking section of pipework cut out and replaced with new materials. Outcome: boiler appeared air-locked on refill and was left switched off.","triples":[["ADI case study 202","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 202","town","South Molton"],["ADI case study 202","postcode sector","EX36 4"],["ADI case study 202","county","Devon"],["ADI case study 202","country","England"],["ADI case study 202","leak type","Central heating leak"],["ADI case study 202","service","Central Heating Leak Detection"],["ADI case study 202","service","Heating Leak Detection"],["ADI case study 202","engineer","James Bexter"],["ADI case study 202","detection method","Thermal Imaging"],["ADI case study 202","detection method","Damp Meter"],["ADI case study 202","detection method","Pressure Testing"],["ADI case study 202","detection method","Tracer Gas"],["ADI case study 202","detection method","Acoustic Correlation"],["ADI case study 202","system affected","9-radiator heating system with a combination boiler"],["ADI case study 202","system affected","heating pipe embedded in screed for over 40 years"],["ADI case study 202","test result","pressure dropped from 2 bar to 0 bar within 15 to 20 minutes"],["ADI case study 202","test result","2 bar air test showed a slow steady drop over the 30 minute period"],["ADI case study 202","test result","tracer gas at 2 bar gave strong readings in the entrance hall"],["ADI case study 202","leak location","under the entrance hall screed"],["ADI case study 202","access made","hallway carpet lifted, revealing significantly wet underlay"],["ADI case study 202","access made","area where the leak was detected excavated"],["ADI case study 202","repair","leaking section of pipework cut out and replaced with new materials"],["ADI case study 202","outcome","boiler appeared air-locked on refill and was left switched off"],["ADI case study 202","outcome","excavated area to be temporarily covered with wood while the screed dries"],["ADI case study 202","recommendation","have a Gas Safe registered engineer purge the boiler to clear the air-lock"],["ADI case study 202","recommendation","let the screed dry out thoroughly before patching the floor"],["ADI case study 202","recommendation","if the problem recurs, re-pipe the heating from the loft with radiator drops"]]},
{"id":201,"title":"drainage leak in Irvine (KA2 0)","summary":"ADI Leak Detection engineer Hamaad Janjua investigated a drainage leak in Irvine, Ayrshire (KA2 0), using thermal imaging, tracer gas, an endoscope camera and a damp meter. Leak location: waste pipe fitting in the kitchen ceiling void. Work done: new section of waste pipe and new fittings installed. Outcome: system retested and passed at the time of the visit.","triples":[["ADI case study 201","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 201","town","Irvine"],["ADI case study 201","postcode sector","KA2 0"],["ADI case study 201","county","Ayrshire"],["ADI case study 201","country","Scotland"],["ADI case study 201","leak type","Drainage leak"],["ADI case study 201","service","Drainage Leak Detection"],["ADI case study 201","engineer","Hamaad Janjua"],["ADI case study 201","detection method","Thermal Imaging"],["ADI case study 201","detection method","Tracer Gas"],["ADI case study 201","detection method","Endoscope Camera"],["ADI case study 201","detection method","Damp Meter"],["ADI case study 201","property type","two-storey house"],["ADI case study 201","symptom","leak from the kitchen ceiling only when the upstairs showers are in use"],["ADI case study 201","symptom","no visible signs of leakage in the bathrooms directly above"],["ADI case study 201","system affected","waste pipes from the upstairs showers"],["ADI case study 201","test result","green tracer dye seen dripping through the kitchen ceiling"],["ADI case study 201","test result","endoscope camera showed a leak at a waste pipe fitting connection"],["ADI case study 201","leak location","waste pipe fitting in the kitchen ceiling void"],["ADI case study 201","leak cause","partially blocked shower waste, possibly a contributing factor"],["ADI case study 201","access made","small opening made in the ceiling for an endoscope camera"],["ADI case study 201","access made","section of the ceiling cut out for the repair"],["ADI case study 201","repair","new section of waste pipe and new fittings installed"],["ADI case study 201","outcome","system retested and passed at the time of the visit"],["ADI case study 201","recommendation","take care about what goes down the shower traps"]]},
{"id":200,"title":"underground water mains leak in Carlisle (CA5 6)","summary":"ADI Leak Detection engineer Hamaad Janjua investigated an underground water mains leak in Carlisle, Cumbria (CA5 6), using acoustic correlation, pressure testing, tracer gas and visual inspection. Leak location: buried pipework at the rear of the property. Work done: damaged section of pipe cut back and a new section installed. Outcome: retest accuracy limited as two troughs had no isolation valves.","triples":[["ADI case study 200","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 200","town","Carlisle"],["ADI case study 200","postcode sector","CA5 6"],["ADI case study 200","county","Cumbria"],["ADI case study 200","country","England"],["ADI case study 200","leak type","Underground water mains leak"],["ADI case study 200","service","Water Mains Leak Detection"],["ADI case study 200","service","Underground Leak Detection"],["ADI case study 200","engineer","Hamaad Janjua"],["ADI case study 200","detection method","Acoustic Correlation"],["ADI case study 200","detection method","Pressure Testing"],["ADI case study 200","detection method","Tracer Gas"],["ADI case study 200","detection method","Visual Inspection"],["ADI case study 200","property type","property on a farm"],["ADI case study 200","symptom","water meter keeps spinning with the stopcock isolated"],["ADI case study 200","symptom","no surface signs of a leak such as pooling water or damp ground"],["ADI case study 200","system affected","external mains supply"],["ADI case study 200","test result","acoustic survey gave no clear results"],["ADI case study 200","test result","pressure test gave a positive gas result at the rear of the property"],["ADI case study 200","test result","one trough on the farm found to be passing"],["ADI case study 200","leak location","buried pipework at the rear of the property"],["ADI case study 200","leak cause","installation fault"],["ADI case study 200","access made","area excavated with the customer assisting using a digger"],["ADI case study 200","repair","damaged section of pipe cut back and a new section installed"],["ADI case study 200","outcome","retest accuracy limited as two troughs had no isolation valves"],["ADI case study 200","recommendation","have both troughs inspected and replace the ball valves if necessary"],["ADI case study 200","recommendation","install isolation valves on each trough"]]},
{"id":199,"title":"internal cold mains leak in Dumbarton (G83 0)","summary":"ADI Leak Detection engineer Hamaad Janjua investigated an internal cold mains leak in Dumbarton, Dunbartonshire (G83 0), using acoustic correlation, thermal imaging, tracer gas, a damp meter, an endoscope camera, visual inspection and sectional isolation. Leak location: apparent stop valve and capped-off waste pipe under the hallway floorboards. Work done: pipework cut back and new fittings installed. Outcome: only a visual retest possible due to lack of access, found leak free.","triples":[["ADI case study 199","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 199","town","Dumbarton"],["ADI case study 199","postcode sector","G83 0"],["ADI case study 199","county","Dunbartonshire"],["ADI case study 199","country","Scotland"],["ADI case study 199","leak type","Internal cold mains leak"],["ADI case study 199","service","Water Mains Leak Detection"],["ADI case study 199","service","Internal Leak Detection"],["ADI case study 199","engineer","Hamaad Janjua"],["ADI case study 199","detection method","Acoustic Correlation"],["ADI case study 199","detection method","Thermal Imaging"],["ADI case study 199","detection method","Tracer Gas"],["ADI case study 199","detection method","Damp Meter"],["ADI case study 199","detection method","Endoscope Camera"],["ADI case study 199","detection method","Visual Inspection"],["ADI case study 199","detection method","Sectional Isolation"],["ADI case study 199","property type","property in a block of eight"],["ADI case study 199","symptom","constant drip into the hallway of the property below"],["ADI case study 199","system affected","dead-leg section of pipework in the hallway"],["ADI case study 199","test result","internal mains tested and passed"],["ADI case study 199","test result","small weep on cold pipe beneath the boiler, not enough to explain the leak"],["ADI case study 199","test result","high moisture reading in the hallway directly above the drip below"],["ADI case study 199","leak location","apparent stop valve and capped-off waste pipe under the hallway floorboards"],["ADI case study 199","access made","floorboards lifted"],["ADI case study 199","repair","pipework cut back and new fittings installed"],["ADI case study 199","outcome","only a visual retest possible due to lack of access, found leak free"],["ADI case study 199","recommendation","cut back and cap the dead-leg section and redundant waste pipework"],["ADI case study 199","recommendation","fix the minor weep behind the boiler and the washing machine faults"],["ADI case study 199","recommendation","install a single main stop valve to isolate the full water supply"]]},
{"id":198,"title":"internal cold mains leak in Kilmarnock (KA17 0)","summary":"ADI Leak Detection engineer Hamaad Janjua investigated an internal cold mains leak in Kilmarnock, Ayrshire (KA17 0), using pressure testing, thermal imaging, a damp meter, an endoscope camera and acoustic correlation. Leak location: beneath the bath. Work done: pipework cut back and new fittings installed. Outcome: retest completed after the repair.","triples":[["ADI case study 198","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 198","town","Kilmarnock"],["ADI case study 198","postcode sector","KA17 0"],["ADI case study 198","county","Ayrshire"],["ADI case study 198","country","Scotland"],["ADI case study 198","leak type","Internal cold mains leak"],["ADI case study 198","service","Water Mains Leak Detection"],["ADI case study 198","service","Internal Leak Detection"],["ADI case study 198","engineer","Hamaad Janjua"],["ADI case study 198","detection method","Pressure Testing"],["ADI case study 198","detection method","Thermal Imaging"],["ADI case study 198","detection method","Damp Meter"],["ADI case study 198","detection method","Endoscope Camera"],["ADI case study 198","detection method","Acoustic Correlation"],["ADI case study 198","property type","upstairs property in a two-storey building"],["ADI case study 198","symptom","leak appearing in the hall of the downstairs property"],["ADI case study 198","pipe material","copper"],["ADI case study 198","test result","pressure test failed on the hot supply pipe, all other tests passed"],["ADI case study 198","test result","wet moisture readings beneath the bath, visible moisture confirmed by endoscope camera"],["ADI case study 198","test result","thermal imaging identified a wet patch"],["ADI case study 198","leak location","beneath the bath"],["ADI case study 198","leak cause","hairline crack in a copper pipe"],["ADI case study 198","access made","several floorboards lifted"],["ADI case study 198","repair","pipework cut back and new fittings installed"],["ADI case study 198","repair","isolation valve added to the cold mains pipe"],["ADI case study 198","outcome","retest completed after the repair"],["ADI case study 198","recommendation","upgrade the toilet pipework, which is in very poor condition with corrosion"],["ADI case study 198","recommendation","upgrade the waste pipes, which are in bad condition"]]},
{"id":197,"title":"hot water system leak in Carlisle (CA2 7)","summary":"ADI Leak Detection engineer Hamaad Janjua investigated a hot water system leak in Carlisle, Cumbria (CA2 7), using pressure testing, tracer gas, a damp meter, thermal imaging, an endoscope camera and visual inspection. Leak location: damaged section of pipework beneath the kitchen floor. Work done: defective section cut out and replaced with copper pipe and fittings soldered into place. Outcome: system re-pressurised and retested with no further leaks detected.","triples":[["ADI case study 197","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 197","town","Carlisle"],["ADI case study 197","postcode sector","CA2 7"],["ADI case study 197","county","Cumbria"],["ADI case study 197","country","England"],["ADI case study 197","leak type","Hot water system leak"],["ADI case study 197","service","Hot Water Leak Detection"],["ADI case study 197","service","Internal Leak Detection"],["ADI case study 197","engineer","Hamaad Janjua"],["ADI case study 197","detection method","Pressure Testing"],["ADI case study 197","detection method","Tracer Gas"],["ADI case study 197","detection method","Damp Meter"],["ADI case study 197","detection method","Thermal Imaging"],["ADI case study 197","detection method","Endoscope Camera"],["ADI case study 197","detection method","Visual Inspection"],["ADI case study 197","property type","two-storey property"],["ADI case study 197","symptom","water company advised of excessive water usage"],["ADI case study 197","symptom","bulging kitchen flooring"],["ADI case study 197","symptom","heavily saturated laminate flooring with dampness tracking up the adjoining walls"],["ADI case study 197","system affected","hot water feed"],["ADI case study 197","test result","no pressure loss recorded on the heating system"],["ADI case study 197","test result","pressure test found a leak on the hot water feed"],["ADI case study 197","test result","tracer gas detected in the kitchen area"],["ADI case study 197","leak location","damaged section of pipework beneath the kitchen floor"],["ADI case study 197","access made","affected area exposed"],["ADI case study 197","repair","defective section cut out and replaced with copper pipe and fittings soldered into place"],["ADI case study 197","outcome","system re-pressurised and retested with no further leaks detected"],["ADI case study 197","recommendation","upgrade the hot and cold feed pipework in the long term"],["ADI case study 197","recommendation","keep the new pipe section accessible rather than re-embedding it in concrete"],["ADI case study 197","recommendation","repair or replace all affected kitchen flooring"]]},
{"id":196,"title":"central heating leak in Motherwell (G71 8)","summary":"ADI Leak Detection engineer Hamaad Janjua investigated a central heating leak in Motherwell, Lanarkshire (G71 8), using acoustic correlation, thermal imaging, tracer gas, a damp meter and an endoscope camera. Leak location: under the living room floorboards. Work done: new section of pipework installed with fittings and inserts.","triples":[["ADI case study 196","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 196","town","Motherwell"],["ADI case study 196","postcode sector","G71 8"],["ADI case study 196","county","Lanarkshire"],["ADI case study 196","country","Scotland"],["ADI case study 196","leak type","Central heating leak"],["ADI case study 196","service","Central Heating Leak Detection"],["ADI case study 196","service","Heating Leak Detection"],["ADI case study 196","engineer","Hamaad Janjua"],["ADI case study 196","detection method","Acoustic Correlation"],["ADI case study 196","detection method","Thermal Imaging"],["ADI case study 196","detection method","Tracer Gas"],["ADI case study 196","detection method","Damp Meter"],["ADI case study 196","detection method","Endoscope Camera"],["ADI case study 196","property type","two-floor house"],["ADI case study 196","symptom","pressure drops immediately with no obvious signs of a leak"],["ADI case study 196","symptom","earlier assessment confirmed a leak within the system"],["ADI case study 196","symptom","buckled laminate flooring near the sink area"],["ADI case study 196","system affected","central heating pipework"],["ADI case study 196","pipe material","copper"],["ADI case study 196","test result","thermal heat spot in the living room area and a positive moisture meter result"],["ADI case study 196","test result","acoustic sound consistent with a leak under the living room floorboards"],["ADI case study 196","test result","tracer gas test positive"],["ADI case study 196","leak location","under the living room floorboards"],["ADI case study 196","leak cause","pinhole in the central heating copper pipe"],["ADI case study 196","access made","floorboards lifted"],["ADI case study 196","repair","new section of pipework installed with fittings and inserts"],["ADI case study 196","recommendation","pipework under the floorboards not adequately clipped or insulated, a possible future leak risk"]]},
{"id":195,"title":"central heating leak in Cumbernauld (G67 1)","summary":"ADI Leak Detection engineer Hamaad Janjua investigated a central heating leak in Cumbernauld, Lanarkshire (G67 1), using a damp meter, thermal imaging, pressure testing, acoustic correlation and a borescope. Leak location: pipework under the hallway floorboards. Work done: pipework cut and a new section installed with new fittings and inserts. Outcome: retest passed after the new section of pipework was installed.","triples":[["ADI case study 195","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 195","town","Cumbernauld"],["ADI case study 195","postcode sector","G67 1"],["ADI case study 195","county","Lanarkshire"],["ADI case study 195","country","Scotland"],["ADI case study 195","leak type","Central heating leak"],["ADI case study 195","service","Central Heating Leak Detection"],["ADI case study 195","service","Heating Leak Detection"],["ADI case study 195","engineer","Hamaad Janjua"],["ADI case study 195","detection method","Damp Meter"],["ADI case study 195","detection method","Thermal Imaging"],["ADI case study 195","detection method","Pressure Testing"],["ADI case study 195","detection method","Acoustic Correlation"],["ADI case study 195","detection method","Borescope"],["ADI case study 195","property type","bottom floor flat"],["ADI case study 195","symptom","system pressure drops instantly with no visible signs of a leak"],["ADI case study 195","system affected","combi boiler heating system with seven radiators"],["ADI case study 195","test result","positive gas pressure reading in the hall"],["ADI case study 195","test result","acoustic equipment picked up loud noises from the same area"],["ADI case study 195","leak location","pipework under the hallway floorboards"],["ADI case study 195","leak cause","cracked pipework with fittings popped off in several places"],["ADI case study 195","access made","floorboards lifted"],["ADI case study 195","repair","pipework cut and a new section installed with new fittings and inserts"],["ADI case study 195","outcome","retest passed after the new section of pipework was installed"],["ADI case study 195","outcome","system refilled and all radiators tested for heat"],["ADI case study 195","recommendation","lay the flooring with thinner base sheets to avoid strain on the pipework"]]},
{"id":194,"title":"central heating leak in Beith (KA15 1)","summary":"ADI Leak Detection engineer Hamaad Janjua investigated a central heating leak in Beith, Ayrshire (KA15 1), using acoustic correlation, thermal imaging, tracer gas, a damp meter, an endoscope camera and pressure testing. Leak location: fittings at the bedroom radiator. Work done: leaking section cut back and repaired with fittings and inserts. Outcome: retest passed after the repair.","triples":[["ADI case study 194","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 194","town","Beith"],["ADI case study 194","postcode sector","KA15 1"],["ADI case study 194","county","Ayrshire"],["ADI case study 194","country","Scotland"],["ADI case study 194","leak type","Central heating leak"],["ADI case study 194","service","Central Heating Leak Detection"],["ADI case study 194","service","Heating Leak Detection"],["ADI case study 194","engineer","Hamaad Janjua"],["ADI case study 194","detection method","Acoustic Correlation"],["ADI case study 194","detection method","Thermal Imaging"],["ADI case study 194","detection method","Tracer Gas"],["ADI case study 194","detection method","Damp Meter"],["ADI case study 194","detection method","Endoscope Camera"],["ADI case study 194","detection method","Pressure Testing"],["ADI case study 194","property type","two-storey property"],["ADI case study 194","symptom","system losing pressure within 5 to 7 hours"],["ADI case study 194","symptom","no obvious signs of a visible leak"],["ADI case study 194","system affected","central heating system with an oil boiler"],["ADI case study 194","test result","PRV slightly passing and filling loop with a small drip"],["ADI case study 194","test result","pressure test failed"],["ADI case study 194","test result","gas detection positive at the bedroom radiator, supported by acoustic readings"],["ADI case study 194","leak location","fittings at the bedroom radiator"],["ADI case study 194","leak cause","fittings chewed by rodents"],["ADI case study 194","repair","leaking section cut back and repaired with fittings and inserts"],["ADI case study 194","outcome","retest passed after the repair"],["ADI case study 194","recommendation","have a qualified gas engineer repair the PRV and the leaking filling loop"],["ADI case study 194","recommendation","contact pest control about the rodents to avoid further pipe damage"]]},
{"id":193,"title":"central heating leak in Haverhill (CO10 5)","summary":"ADI Leak Detection engineer Grant Corney investigated a central heating leak in Haverhill, Suffolk (CO10 5), using acoustic correlation, thermal imaging, tracer gas, a damp meter and pressure testing. Leak location: pipework directly under the sandstone slabs in the outbuilding. Work done: leaking pipework cut out, compression repair used due to the pipework condition. Outcome: pressure held on a further pressure test after the repair.","triples":[["ADI case study 193","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 193","town","Haverhill"],["ADI case study 193","postcode sector","CO10 5"],["ADI case study 193","county","Suffolk"],["ADI case study 193","country","England"],["ADI case study 193","leak type","Central heating leak"],["ADI case study 193","service","Central Heating Leak Detection"],["ADI case study 193","service","Heating Leak Detection"],["ADI case study 193","engineer","Grant Corney"],["ADI case study 193","detection method","Acoustic Correlation"],["ADI case study 193","detection method","Thermal Imaging"],["ADI case study 193","detection method","Tracer Gas"],["ADI case study 193","detection method","Damp Meter"],["ADI case study 193","detection method","Pressure Testing"],["ADI case study 193","symptom","combination boiler pressure on zero"],["ADI case study 193","symptom","slight water damage between the first two radiators"],["ADI case study 193","symptom","skirting coming away from the wall in the same area"],["ADI case study 193","system affected","heating pipework feeding the radiators in the outbuilding"],["ADI case study 193","test result","tracer gas readings around the water damage, with damp readings in the same area"],["ADI case study 193","test result","acoustic microphone picked up a leak noise in the same area"],["ADI case study 193","leak location","pipework directly under the sandstone slabs in the outbuilding"],["ADI case study 193","leak cause","hole in pipework that looked in poor condition"],["ADI case study 193","access made","sandstone slabs lifted without breaking them"],["ADI case study 193","repair","leaking pipework cut out, compression repair used due to the pipework condition"],["ADI case study 193","repair","22mm plastic pipework and 22mm compression fittings used"],["ADI case study 193","outcome","pressure held on a further pressure test after the repair"],["ADI case study 193","outcome","boiler topped up, with an engineer due to reinstate the boiler"],["ADI case study 193","recommendation","replace the pipework in the area with 22mm copper and soldered fittings"],["ADI case study 193","recommendation","put the slabs back in place after the pipework is replaced"]]},
{"id":192,"title":"underground water mains leak in Cambourne (SG19 1)","summary":"ADI Leak Detection engineer Grant Corney investigated an underground water mains leak in Cambourne, Bedfordshire (SG19 1), using pressure testing, tracer gas and acoustic correlation. Leak location: plastic tee fitting and steel pipe at the first outside tap. Work done: steel standpipe removed, fittings changed and a new plastic tap brought up. Outcome: second leak still needs exposing and repairing.","triples":[["ADI case study 192","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 192","town","Cambourne"],["ADI case study 192","postcode sector","SG19 1"],["ADI case study 192","county","Bedfordshire"],["ADI case study 192","country","England"],["ADI case study 192","leak type","Underground water mains leak"],["ADI case study 192","service","Water Mains Leak Detection"],["ADI case study 192","service","Underground Leak Detection"],["ADI case study 192","engineer","Grant Corney"],["ADI case study 192","detection method","Pressure Testing"],["ADI case study 192","detection method","Tracer Gas"],["ADI case study 192","detection method","Acoustic Correlation"],["ADI case study 192","symptom","meter stops completely when the allotment isolation in the plant room is closed"],["ADI case study 192","system affected","roughly 1 mile of water mains serving greenhouses, a house and 15 allotments"],["ADI case study 192","pipe material","steel"],["ADI case study 192","test result","allotment pipework dropped from four bar to 0 bar within two minutes"],["ADI case study 192","test result","tracer gas readings at the first outside tap on the left of the allotments"],["ADI case study 192","test result","pressure still dropping and meter still going round after the first repair"],["ADI case study 192","leak location","plastic tee fitting and steel pipe at the first outside tap"],["ADI case study 192","leak location","second leak on another outside tap in the middle of the rear allotments"],["ADI case study 192","leak cause","bolt missing from the steel pipe"],["ADI case study 192","access made","area around the first outside tap exposed"],["ADI case study 192","repair","steel standpipe removed, fittings changed and a new plastic tap brought up"],["ADI case study 192","repair","fittings from 32mm to 20mm used with plastic pipe and a new outside tap"],["ADI case study 192","outcome","second leak still needs exposing and repairing"],["ADI case study 192","outcome","customer will carry out the remaining repair works"],["ADI case study 192","recommendation","replace the fittings with Philmac fittings"]]},
{"id":191,"title":"underground water mains leak in Downham Market (PE33 9)","summary":"ADI Leak Detection engineer Grant Corney investigated an underground water mains leak in Downham Market, Norfolk (PE33 9), using pressure testing, tracer gas, acoustic correlation and visual inspection. Leak location: fitting where the pipe was reduced from 25mm to 20mm. Work done: leaking pipework and fittings cut out and replaced with 25mm blue poly pipe. Outcome: pressure held on retest with no further issues.","triples":[["ADI case study 191","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 191","town","Downham Market"],["ADI case study 191","postcode sector","PE33 9"],["ADI case study 191","county","Norfolk"],["ADI case study 191","country","England"],["ADI case study 191","leak type","Underground water mains leak"],["ADI case study 191","service","Water Mains Leak Detection"],["ADI case study 191","service","Underground Leak Detection"],["ADI case study 191","engineer","Grant Corney"],["ADI case study 191","detection method","Pressure Testing"],["ADI case study 191","detection method","Tracer Gas"],["ADI case study 191","detection method","Acoustic Correlation"],["ADI case study 191","detection method","Visual Inspection"],["ADI case study 191","symptom","meter continuously going round with nothing being used"],["ADI case study 191","symptom","no visible leaks on the pipework inside the barn"],["ADI case study 191","system affected","water mains supply feeding the barn"],["ADI case study 191","system affected","supply running down to the back fields and back, over 200 m long"],["ADI case study 191","test result","pressure dropped within two minutes at 4 bar"],["ADI case study 191","test result","tracer gas detected near where the supply rises to the outside tap"],["ADI case study 191","leak location","fitting where the pipe was reduced from 25mm to 20mm"],["ADI case study 191","access made","area excavated, uncovering a T piece with one end capped off"],["ADI case study 191","repair","leaking pipework and fittings cut out and replaced with 25mm blue poly pipe"],["ADI case study 191","outcome","pressure held on retest with no further issues"],["ADI case study 191","recommendation","run a new feed of about 30 m from the meter to the barn"]]},
{"id":190,"title":"underground water mains leak in Cricklade (SN2 1)","summary":"ADI Leak Detection engineer Gabor Weber investigated an underground water mains leak in Cricklade, Wiltshire (SN2 1), using acoustic correlation, a damp meter, pressure testing and visual inspection. Leak location: rusty steel pipe under the hallway tiles and concrete floor. Work done: leaking section replaced with new MDPE pipe and UTC couplings. Outcome: pipework passed a 20 minute retest at 4 bar.","triples":[["ADI case study 190","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 190","town","Cricklade"],["ADI case study 190","postcode sector","SN2 1"],["ADI case study 190","county","Wiltshire"],["ADI case study 190","country","England"],["ADI case study 190","leak type","Underground water mains leak"],["ADI case study 190","service","Water Mains Leak Detection"],["ADI case study 190","service","Underground Leak Detection"],["ADI case study 190","engineer","Gabor Weber"],["ADI case study 190","detection method","Acoustic Correlation"],["ADI case study 190","detection method","Damp Meter"],["ADI case study 190","detection method","Pressure Testing"],["ADI case study 190","detection method","Visual Inspection"],["ADI case study 190","property type","house"],["ADI case study 190","symptom","water appearing in the hallway of the neighbouring house"],["ADI case study 190","system affected","shared external mains pipework feeding two houses"],["ADI case study 190","pipe material","steel"],["ADI case study 190","test result","external mains pressure test failed"],["ADI case study 190","test result","acoustic anomaly and high damp readings on the hallway floor and wall"],["ADI case study 190","test result","retest after the first repair failed"],["ADI case study 190","leak location","rusty steel pipe under the hallway tiles and concrete floor"],["ADI case study 190","leak location","three more leaks on the same pipework"],["ADI case study 190","access made","hallway tiles and concrete flooring exposed"],["ADI case study 190","access made","digging continued through the hallway and outside to sound pipe"],["ADI case study 190","repair","leaking section replaced with new MDPE pipe and UTC couplings"],["ADI case study 190","repair","25mm MDPE pipe with inserts and UTC couplings used"],["ADI case study 190","outcome","pipework passed a 20 minute retest at 4 bar"],["ADI case study 190","outcome","no guarantee given for this pipework"],["ADI case study 190","recommendation","replace the whole external mains pipework because of its condition"]]},
{"id":189,"title":"internal toilet leak in Dorchester (DT9 6)","summary":"ADI Leak Detection engineer Gabor Weber investigated an internal toilet leak in Dorchester, Dorset (DT9 6), using pressure testing, a damp meter, an endoscope camera and tracer gas. Leak location: toilet on the other side of the damp utility kitchen wall. Work done: leaking flexible pan connector replaced. Outcome: replacement flexible pan connector passed testing.","triples":[["ADI case study 189","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 189","town","Dorchester"],["ADI case study 189","postcode sector","DT9 6"],["ADI case study 189","county","Dorset"],["ADI case study 189","country","England"],["ADI case study 189","leak type","Internal toilet leak"],["ADI case study 189","service","Water Mains Leak Detection"],["ADI case study 189","service","Internal Leak Detection"],["ADI case study 189","engineer","Gabor Weber"],["ADI case study 189","detection method","Pressure Testing"],["ADI case study 189","detection method","Damp Meter"],["ADI case study 189","detection method","Endoscope Camera"],["ADI case study 189","detection method","Tracer Gas"],["ADI case study 189","symptom","damp utility kitchen walls"],["ADI case study 189","symptom","earlier damp proof survey found no problem with the DPC"],["ADI case study 189","system affected","flexible pipe to the toilet"],["ADI case study 189","test result","cold feed pressure test passed"],["ADI case study 189","test result","external mains pipework pressure test passed"],["ADI case study 189","test result","hot feed pressure test passed"],["ADI case study 189","leak location","toilet on the other side of the damp utility kitchen wall"],["ADI case study 189","leak location","behind the toilet back panel"],["ADI case study 189","leak cause","many holes in the flexible pipe"],["ADI case study 189","access made","silicone seal cut and toilet back panel removed"],["ADI case study 189","repair","leaking flexible pan connector replaced"],["ADI case study 189","outcome","replacement flexible pan connector passed testing"],["ADI case study 189","recommendation","send the report to the insurance company"]]},
{"id":188,"title":"central heating leak in Hertford (AL6 9)","summary":"ADI Leak Detection engineer Gabor Weber investigated a central heating leak in Hertford, Hertfordshire (AL6 9), using thermal imaging, a damp meter, pressure testing and acoustic correlation. Leak location: 15mm copper pipe on the concrete subfloor under living room wooden flooring. Work done: leaking section replaced with new copper pipe and fittings. Outcome: pipework passed a 1 hour retest at 2 bar with no further leaks.","triples":[["ADI case study 188","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 188","town","Hertford"],["ADI case study 188","postcode sector","AL6 9"],["ADI case study 188","county","Hertfordshire"],["ADI case study 188","country","England"],["ADI case study 188","leak type","Central heating leak"],["ADI case study 188","service","Central Heating Leak Detection"],["ADI case study 188","service","Heating Leak Detection"],["ADI case study 188","engineer","Gabor Weber"],["ADI case study 188","detection method","Thermal Imaging"],["ADI case study 188","detection method","Damp Meter"],["ADI case study 188","detection method","Pressure Testing"],["ADI case study 188","detection method","Acoustic Correlation"],["ADI case study 188","symptom","loss of pressure in the heating system"],["ADI case study 188","symptom","no visible evidence of a leak"],["ADI case study 188","system affected","heating system pipework"],["ADI case study 188","pipe material","copper"],["ADI case study 188","test result","high damp readings under the stair cupboard and living room floor near a radiator"],["ADI case study 188","test result","heating pipework pressure test showed a loss of pressure"],["ADI case study 188","test result","acoustic anomaly on the living room floor matching the high damp readings"],["ADI case study 188","leak location","15mm copper pipe on the concrete subfloor under living room wooden flooring"],["ADI case study 188","access made","mosaic wooden flooring lifted to expose the concrete subfloor"],["ADI case study 188","repair","leaking section replaced with new copper pipe and fittings"],["ADI case study 188","repair","heating system refilled and treated with inhibitors"],["ADI case study 188","repair","automatic air vent replaced"],["ADI case study 188","outcome","pipework passed a 1 hour retest at 2 bar with no further leaks"],["ADI case study 188","recommendation","keep the exposed surface open until it is completely dry"],["ADI case study 188","recommendation","contact the insurance provider about trace and access cover for remedial works"]]},
{"id":187,"title":"hot water system leak in Knaphill (GU24 9)","summary":"ADI Leak Detection engineer Gabor Weber investigated a hot water system leak in Knaphill, Surrey (GU24 9), using thermal imaging, acoustic correlation, a damp meter and pressure testing. Leak location: 15mm copper pipe under the lobby vinyl and concrete floor. Work done: leaking pipe replaced with copper pipe and fittings with lagging. Outcome: pipework passed a 20 minute retest at 4 bar with no further leaks.","triples":[["ADI case study 187","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 187","town","Knaphill"],["ADI case study 187","postcode sector","GU24 9"],["ADI case study 187","county","Surrey"],["ADI case study 187","country","England"],["ADI case study 187","leak type","Hot water system leak"],["ADI case study 187","service","Hot Water Leak Detection"],["ADI case study 187","service","Internal Leak Detection"],["ADI case study 187","engineer","Gabor Weber"],["ADI case study 187","detection method","Thermal Imaging"],["ADI case study 187","detection method","Acoustic Correlation"],["ADI case study 187","detection method","Damp Meter"],["ADI case study 187","detection method","Pressure Testing"],["ADI case study 187","symptom","bubbling paintwork on the lobby wall and a warm floor"],["ADI case study 187","symptom","heavy damp on the lobby and utility kitchen walls"],["ADI case study 187","system affected","hot feed pipework"],["ADI case study 187","pipe material","copper"],["ADI case study 187","test result","cold feed pressure test passed"],["ADI case study 187","test result","hot feed pressure test failed"],["ADI case study 187","test result","retest after the first repair failed, indicating another leak"],["ADI case study 187","leak location","15mm copper pipe under the lobby vinyl and concrete floor"],["ADI case study 187","leak location","second leak about 15cm from the first"],["ADI case study 187","leak cause","hairline crack in the copper pipe"],["ADI case study 187","access made","lobby vinyl and concrete floor exposed"],["ADI case study 187","repair","leaking pipe replaced with copper pipe and fittings with lagging"],["ADI case study 187","outcome","pipework passed a 20 minute retest at 4 bar with no further leaks"],["ADI case study 187","recommendation","replace the ground floor pipework, which is in poor condition"]]},
{"id":186,"title":"internal cold mains leak in Bradwell (NR31 6)","summary":"ADI Leak Detection engineer Ferenc Gulyas investigated an internal cold mains leak in Bradwell, Norfolk (NR31 6), using acoustic correlation, tracer gas, a damp meter and pressure testing. Leak location: in the kitchen doorway from the utility room. Work done: two redundant pipework runs isolated and capped. Outcome: all active cold and hot water pipework passed a retest.","triples":[["ADI case study 186","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 186","town","Bradwell"],["ADI case study 186","postcode sector","NR31 6"],["ADI case study 186","county","Norfolk"],["ADI case study 186","country","England"],["ADI case study 186","leak type","Internal cold mains leak"],["ADI case study 186","service","Water Mains Leak Detection"],["ADI case study 186","service","Internal Leak Detection"],["ADI case study 186","engineer","Ferenc Gulyas"],["ADI case study 186","detection method","Acoustic Correlation"],["ADI case study 186","detection method","Tracer Gas"],["ADI case study 186","detection method","Damp Meter"],["ADI case study 186","detection method","Pressure Testing"],["ADI case study 186","symptom","damp area in the kitchen doorway with water damage to the kitchen skirting"],["ADI case study 186","symptom","wet concrete subfloor under vinyl flooring already removed by the customer"],["ADI case study 186","symptom","pressurised heating system had not lost any pressure"],["ADI case study 186","system affected","cold main supplying the utility sink, front outside tap, downstairs toilet and softener"],["ADI case study 186","test result","cold main pipework pressure test indicated a leak"],["ADI case study 186","test result","hot water pipework passed its pressure test"],["ADI case study 186","test result","tracer gas located the leak in the kitchen doorway from the utility room"],["ADI case study 186","leak location","in the kitchen doorway from the utility room"],["ADI case study 186","repair","two redundant pipework runs isolated and capped"],["ADI case study 186","repair","15mm isolation valves used"],["ADI case study 186","outcome","all active cold and hot water pipework passed a retest"],["ADI case study 186","outcome","external main passed a pressure test, with street water pressure at 2.6 bar"],["ADI case study 186","recommendation","keep running a dehumidifier in the kitchen to dry the damp area"],["ADI case study 186","recommendation","monitor the area for any further signs of dampness"]]},
{"id":185,"title":"underground water mains leak in Ipswich (IP3 8)","summary":"ADI Leak Detection engineer Ferenc Gulyas investigated an underground water mains leak in Ipswich, Suffolk (IP3 8), using tracer gas, pressure testing, flow metering and visual inspection. Leak location: previous repair point beneath the driveway paving blocks. Work done: faulty fitting replaced with new Philmac UTC couplings. Outcome: retest and final water meter check on all pipework passed.","triples":[["ADI case study 185","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 185","town","Ipswich"],["ADI case study 185","postcode sector","IP3 8"],["ADI case study 185","county","Suffolk"],["ADI case study 185","country","England"],["ADI case study 185","leak type","Underground water mains leak"],["ADI case study 185","service","Water Mains Leak Detection"],["ADI case study 185","service","Underground Leak Detection"],["ADI case study 185","engineer","Ferenc Gulyas"],["ADI case study 185","detection method","Tracer Gas"],["ADI case study 185","detection method","Pressure Testing"],["ADI case study 185","detection method","Flow Metering"],["ADI case study 185","detection method","Visual Inspection"],["ADI case study 185","symptom","no visible evidence of the leak on arrival"],["ADI case study 185","pipe material","lead"],["ADI case study 185","test result","water meter moved with the internal stopcock closed"],["ADI case study 185","test result","pressure test connected at the internal stopcock confirmed a leak"],["ADI case study 185","test result","tracer gas emanating from the driveway, suggesting a leak beyond the brick wall"],["ADI case study 185","leak location","previous repair point beneath the driveway paving blocks"],["ADI case study 185","leak cause","Philmac UTC coupling leaking as the lead pipework was not correctly seated"],["ADI case study 185","access made","suspended floor exposed, revealing lead pipework"],["ADI case study 185","access made","driveway paving blocks exposed and ground excavated"],["ADI case study 185","repair","faulty fitting replaced with new Philmac UTC couplings"],["ADI case study 185","outcome","retest and final water meter check on all pipework passed"],["ADI case study 185","outcome","inside area restored and outside excavation backfilled"]]},
{"id":184,"title":"underground water mains leak in Sheffield (S9 1)","summary":"ADI Leak Detection engineer Brett Steele investigated an underground water mains leak in Sheffield, South Yorkshire (S9 1), using acoustic correlation, tracer gas, pressure testing and flow metering. Leak location: transition fitting reducing 25mm MDPE to 15mm copper. Work done: transition fitting re-seated and tightened. Outcome: pressure test showed no further loss and no uncontrolled usage at the meter.","triples":[["ADI case study 184","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 184","town","Sheffield"],["ADI case study 184","postcode sector","S9 1"],["ADI case study 184","county","South Yorkshire"],["ADI case study 184","country","England"],["ADI case study 184","leak type","Underground water mains leak"],["ADI case study 184","service","Water Mains Leak Detection"],["ADI case study 184","service","Underground Leak Detection"],["ADI case study 184","engineer","Brett Steele"],["ADI case study 184","detection method","Acoustic Correlation"],["ADI case study 184","detection method","Tracer Gas"],["ADI case study 184","detection method","Pressure Testing"],["ADI case study 184","detection method","Flow Metering"],["ADI case study 184","symptom","suspected leak causing elevated water consumption"],["ADI case study 184","pipe material","MDPE"],["ADI case study 184","test result","constant meter usage with internal stop cock isolated, 1 litre in just over 30 seconds"],["ADI case study 184","test result","high tracer gas readings in the front garden near the driveway edge"],["ADI case study 184","test result","pressure test after reseating the first fitting showed further issues"],["ADI case study 184","leak location","transition fitting reducing 25mm MDPE to 15mm copper"],["ADI case study 184","leak location","under the driveway"],["ADI case study 184","leak cause","small crack that had formed in the MDPE pipe"],["ADI case study 184","access made","trial excavation in the grassed area"],["ADI case study 184","repair","transition fitting re-seated and tightened"],["ADI case study 184","repair","cracked section removed and repaired using a 25mm MDPE coupler"],["ADI case study 184","outcome","pressure test showed no further loss and no uncontrolled usage at the meter"],["ADI case study 184","recommendation","protect the pipe with soft sand before backfilling and making good"]]},
{"id":183,"title":"underground water mains leak in Nottingham (NG7 4)","summary":"ADI Leak Detection engineer Brett Steele investigated an underground water mains leak in Nottingham, Nottinghamshire (NG7 4), using acoustic correlation, tracer gas, pressure testing and flow metering. Leak location: more or less below the drain. Work done: leak section cut out and replaced with new pipe and fittings. Outcome: testing proved the supply sound after the repair.","triples":[["ADI case study 183","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 183","town","Nottingham"],["ADI case study 183","postcode sector","NG7 4"],["ADI case study 183","county","Nottinghamshire"],["ADI case study 183","country","England"],["ADI case study 183","leak type","Underground water mains leak"],["ADI case study 183","service","Water Mains Leak Detection"],["ADI case study 183","service","Underground Leak Detection"],["ADI case study 183","engineer","Brett Steele"],["ADI case study 183","detection method","Acoustic Correlation"],["ADI case study 183","detection method","Tracer Gas"],["ADI case study 183","detection method","Pressure Testing"],["ADI case study 183","detection method","Flow Metering"],["ADI case study 183","property type","work units"],["ADI case study 183","symptom","utility bill spike suggesting usage of around 2000 litres per hour"],["ADI case study 183","symptom","no signs of water damage found"],["ADI case study 183","system affected","mains feeding two work units with only a toilet and two basins"],["ADI case study 183","system affected","supply pipe that had become distorted and flattened out"],["ADI case study 183","test result","meter recorded uncontrolled usage of 1 litre per second"],["ADI case study 183","test result","high tracer gas levels around the drain covers close to the meter"],["ADI case study 183","test result","acoustic area of concern below the cobbles near the drain and unit wall"],["ADI case study 183","leak location","more or less below the drain"],["ADI case study 183","access made","excavation carried out around the area of concern"],["ADI case study 183","repair","leak section cut out and replaced with new pipe and fittings"],["ADI case study 183","repair","25mm MDPE fitted using specialist transition couplers and inserts"],["ADI case study 183","outcome","testing proved the supply sound after the repair"],["ADI case study 183","outcome","no guarantee against further issues given the supply pipe condition"],["ADI case study 183","recommendation","repipe the supply if further leaks are found, as the removed section was brittle"]]},
{"id":182,"title":"internal cold mains leak in Great Ayton (TS9 6)","summary":"ADI Leak Detection engineer Brett Steele investigated an internal cold mains leak in Great Ayton, North Yorkshire (TS9 6), using acoustic correlation, tracer gas, a damp meter, pressure testing and flow metering. Leak location: beneath the kitchen unit adjacent to the sink. Work done: affected section replaced with flexible push-fit piping due to the restrictive pipe layout. Outcome: pressure test with four bar tracer gas showed no loss.","triples":[["ADI case study 182","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 182","town","Great Ayton"],["ADI case study 182","postcode sector","TS9 6"],["ADI case study 182","county","North Yorkshire"],["ADI case study 182","country","England"],["ADI case study 182","leak type","Internal cold mains leak"],["ADI case study 182","service","Water Mains Leak Detection"],["ADI case study 182","service","Internal Leak Detection"],["ADI case study 182","engineer","Brett Steele"],["ADI case study 182","detection method","Acoustic Correlation"],["ADI case study 182","detection method","Tracer Gas"],["ADI case study 182","detection method","Damp Meter"],["ADI case study 182","detection method","Pressure Testing"],["ADI case study 182","detection method","Flow Metering"],["ADI case study 182","symptom","water penetrating the rear wall of the property"],["ADI case study 182","symptom","recent utility bills showing a pattern of high water consumption"],["ADI case study 182","symptom","water damage around the internal stopcock on new plasterwork"],["ADI case study 182","pipe material","copper"],["ADI case study 182","test result","meter recorded uncontrolled usage of one litre every one and a half minutes"],["ADI case study 182","test result","usage stopped when the internal stopcock was isolated"],["ADI case study 182","test result","elevated gas readings beneath a kitchen unit adjacent to the sink"],["ADI case study 182","leak location","beneath the kitchen unit adjacent to the sink"],["ADI case study 182","leak cause","significant corrosion, possibly from friction against unprotected copper pipework"],["ADI case study 182","access made","kitchen unit and floor screed removed"],["ADI case study 182","repair","affected section replaced with flexible push-fit piping due to the restrictive pipe layout"],["ADI case study 182","outcome","pressure test with four bar tracer gas showed no loss"],["ADI case study 182","outcome","no further usage recorded on the water meter"],["ADI case study 182","recommendation","keep repaired area accessible as fittings should not be encased in screed or concrete"],["ADI case study 182","recommendation","full drying procedure on all water-damaged areas, possibly lifting more kitchen flooring"]]},
{"id":181,"title":"internal cold mains leak in Leeds (LS16 7)","summary":"ADI Leak Detection engineer Brett Steele investigated an internal cold mains leak in Leeds, West Yorkshire (LS16 7), using acoustic correlation, tracer gas, a borescope, pressure testing, flow metering and a ground microphone. Leak location: beneath the utility room floor. Work done: damaged section removed and supply reconnected with a 15mm push fit coupler. Outcome: all supplies held pressure and the internal meter showed no further uncontrolled usage.","triples":[["ADI case study 181","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 181","town","Leeds"],["ADI case study 181","postcode sector","LS16 7"],["ADI case study 181","county","West Yorkshire"],["ADI case study 181","country","England"],["ADI case study 181","leak type","Internal cold mains leak"],["ADI case study 181","service","Water Mains Leak Detection"],["ADI case study 181","service","Internal Leak Detection"],["ADI case study 181","engineer","Brett Steele"],["ADI case study 181","detection method","Acoustic Correlation"],["ADI case study 181","detection method","Tracer Gas"],["ADI case study 181","detection method","Borescope"],["ADI case study 181","detection method","Pressure Testing"],["ADI case study 181","detection method","Flow Metering"],["ADI case study 181","detection method","Ground Microphone"],["ADI case study 181","symptom","unusually high water consumption following a spike in utility bills"],["ADI case study 181","symptom","internal meter beneath the kitchen units showed continuous usage with no known demand"],["ADI case study 181","symptom","no visible signs of water damage"],["ADI case study 181","system affected","cold feed"],["ADI case study 181","test result","uncontrolled consumption of approximately 0.3 litres over one minute"],["ADI case study 181","test result","usage continued with the hot supply isolated, placing the issue on the cold supply"],["ADI case study 181","test result","elevated gas readings around the washing machine cold feed in the utility room"],["ADI case study 181","leak location","beneath the utility room floor"],["ADI case study 181","leak cause","puncture in the cold feed"],["ADI case study 181","access made","floor tiles lifted"],["ADI case study 181","repair","damaged section removed and supply reconnected with a 15mm push fit coupler"],["ADI case study 181","outcome","all supplies held pressure and the internal meter showed no further uncontrolled usage"],["ADI case study 181","outcome","foundations beneath the utility floor saturated with pockets of standing water"],["ADI case study 181","recommendation","allow the area to dry fully before any reinstatement works"],["ADI case study 181","recommendation","use dehumidifiers and heaters to speed up drying"]]},
{"id":180,"title":"underground water mains leak in Collingham (LS22 4)","summary":"ADI Leak Detection engineer Brett Steele investigated an underground water mains leak in Collingham, West Yorkshire (LS22 4), using acoustic correlation, tracer gas and pressure testing. Leak location: beneath the lawn adjacent to the garden house. Work done: leak section repaired with a specialist 27-34mm transition coupler. Outcome: supply pressure tested with tracer gas at 4 bar showed no loss.","triples":[["ADI case study 180","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 180","town","Collingham"],["ADI case study 180","postcode sector","LS22 4"],["ADI case study 180","county","West Yorkshire"],["ADI case study 180","country","England"],["ADI case study 180","leak type","Underground water mains leak"],["ADI case study 180","service","Water Mains Leak Detection"],["ADI case study 180","service","Underground Leak Detection"],["ADI case study 180","engineer","Brett Steele"],["ADI case study 180","detection method","Acoustic Correlation"],["ADI case study 180","detection method","Tracer Gas"],["ADI case study 180","detection method","Pressure Testing"],["ADI case study 180","symptom","issues began around the time large marquees were erected in the neighbouring garden"],["ADI case study 180","system affected","mains supply thought to run through the neighbouring garden"],["ADI case study 180","test result","suspect leak noise on the hard standing by the garden house"],["ADI case study 180","test result","high tracer gas readings from under the lawn next to the hard standing"],["ADI case study 180","test result","gas mixed with the mains produced an audible leak noise in the same area"],["ADI case study 180","leak location","beneath the lawn adjacent to the garden house"],["ADI case study 180","leak location","mains supply found below electric cables and a gas supply"],["ADI case study 180","leak cause","puncture hole in the mains supply"],["ADI case study 180","access made","excavation works carried out"],["ADI case study 180","repair","leak section repaired with a specialist 27-34mm transition coupler"],["ADI case study 180","outcome","supply pressure tested with tracer gas at 4 bar showed no loss"],["ADI case study 180","outcome","excavation backfilled"]]},
{"id":179,"title":"underground water mains leak in Shipston on Stour (CV36 4)","summary":"ADI Leak Detection engineer Adam Regan investigated an underground water mains leak in Shipston on Stour, Warwickshire (CV36 4), using acoustic correlation, pressure testing and visual inspection. Leak location: incoming main where it runs through the wall and behind the drain. Work done: semi permanent repair on the 25mm MDPE using a Philmac repair coupling and pipe supports. Outcome: repair only semi permanent because the pipework is too shallow.","triples":[["ADI case study 179","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 179","town","Shipston on Stour"],["ADI case study 179","postcode sector","CV36 4"],["ADI case study 179","county","Warwickshire"],["ADI case study 179","country","England"],["ADI case study 179","leak type","Underground water mains leak"],["ADI case study 179","service","Water Mains Leak Detection"],["ADI case study 179","service","Underground Leak Detection"],["ADI case study 179","engineer","Adam Regan"],["ADI case study 179","detection method","Acoustic Correlation"],["ADI case study 179","detection method","Pressure Testing"],["ADI case study 179","detection method","Visual Inspection"],["ADI case study 179","symptom","significant water leak estimated at approximately 1000 litres per day"],["ADI case study 179","system affected","25mm blue MDPE incoming main supply entering the kitchen beneath the units"],["ADI case study 179","pipe material","MDPE"],["ADI case study 179","test result","acoustic anomaly outside the kitchen beneath the patio near the drain"],["ADI case study 179","test result","pressure testing with acoustics intensified the anomaly at the same location"],["ADI case study 179","leak location","incoming main where it runs through the wall and behind the drain"],["ADI case study 179","access made","area around the drain excavated"],["ADI case study 179","repair","semi permanent repair on the 25mm MDPE using a Philmac repair coupling and pipe supports"],["ADI case study 179","outcome","repair only semi permanent because the pipework is too shallow"],["ADI case study 179","recommendation","replace and re-lay the main supply at least 750mm deep before entering the property"]]},
{"id":178,"title":"underground water mains leak in Chinnor (OX39 4)","summary":"ADI Leak Detection engineer Adam Regan investigated an underground water mains leak in Chinnor, Oxfordshire (OX39 4), using acoustic correlation, visual inspection and sectional isolation. Leak location: beneath the floor at the door threshold. Work done: repair made with plastic fittings and pipework so water could be restored to the bar. Outcome: repair classed as temporary as plastic fittings and pipework were used.","triples":[["ADI case study 178","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 178","town","Chinnor"],["ADI case study 178","postcode sector","OX39 4"],["ADI case study 178","county","Oxfordshire"],["ADI case study 178","country","England"],["ADI case study 178","leak type","Underground water mains leak"],["ADI case study 178","service","Water Mains Leak Detection"],["ADI case study 178","service","Underground Leak Detection"],["ADI case study 178","engineer","Adam Regan"],["ADI case study 178","detection method","Acoustic Correlation"],["ADI case study 178","detection method","Visual Inspection"],["ADI case study 178","detection method","Sectional Isolation"],["ADI case study 178","property type","pub"],["ADI case study 178","symptom","wet area next to the bar and at the kitchen entrance"],["ADI case study 178","symptom","water on the floor at the door threshold, very wet under the mat"],["ADI case study 178","system affected","copper pipe going into the ground"],["ADI case study 178","pipe material","copper"],["ADI case study 178","test result","plastic chamber meter showed no movement, supplying the right hand toilets and basin"],["ADI case study 178","test result","acoustic anomaly detected from the copper pipe going into the ground"],["ADI case study 178","test result","acoustic anomalies disappeared once the stop cock was unseized and shut off"],["ADI case study 178","leak location","beneath the floor at the door threshold"],["ADI case study 178","leak location","squashed section of pipe with a hole"],["ADI case study 178","leak cause","copper pipe apparently damaged during past drain work"],["ADI case study 178","leak cause","tough concrete mix half encasing the pipe caused more damage"],["ADI case study 178","access made","ground exposed"],["ADI case study 178","repair","repair made with plastic fittings and pipework so water could be restored to the bar"],["ADI case study 178","repair","repaired pipework sleeved and protected"],["ADI case study 178","outcome","repair classed as temporary as plastic fittings and pipework were used"],["ADI case study 178","outcome","sleeved repair should be fine as a permanent repair"],["ADI case study 178","recommendation","pour liquid DPM below the repair, then cover pipework and duct with soft mortar"],["ADI case study 178","recommendation","if not wanted under the floor, run the pipework on the surface around the door"],["ADI case study 178","recommendation","otherwise that area of the pub would need all pipe removed from under the floor"]]},
{"id":177,"title":"underground water mains leak in Brackley (NN13 6)","summary":"ADI Leak Detection engineer Adam Regan investigated an underground water mains leak in Brackley, Northamptonshire (NN13 6), using acoustic correlation, tracer gas, visual inspection and sectional isolation. Leak location: underneath the exposed steel pipework. Work done: leaking steel section cut out and cleaned up at both ends.","triples":[["ADI case study 177","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 177","town","Brackley"],["ADI case study 177","postcode sector","NN13 6"],["ADI case study 177","county","Northamptonshire"],["ADI case study 177","country","England"],["ADI case study 177","leak type","Underground water mains leak"],["ADI case study 177","service","Water Mains Leak Detection"],["ADI case study 177","service","Underground Leak Detection"],["ADI case study 177","engineer","Adam Regan"],["ADI case study 177","detection method","Acoustic Correlation"],["ADI case study 177","detection method","Tracer Gas"],["ADI case study 177","detection method","Visual Inspection"],["ADI case study 177","detection method","Sectional Isolation"],["ADI case study 177","symptom","small amount of water around the road stopcock head, possibly from the gland nut"],["ADI case study 177","symptom","stop valve failed and letting by, so water could not be fully shut off"],["ADI case study 177","pipe material","steel"],["ADI case study 177","test result","acoustic anomalies in the area around 2 metres from the drain cover"],["ADI case study 177","leak location","underneath the exposed steel pipework"],["ADI case study 177","leak cause","steel pipe corroded through in two locations, otherwise in good condition"],["ADI case study 177","access made","concrete broken out and the ground exposed"],["ADI case study 177","repair","leaking steel section cut out and cleaned up at both ends"],["ADI case study 177","repair","repaired using specialist UTC repair fittings and 25mm MDPE"]]},
{"id":176,"title":"central heating leak in Warwick (CV47 2)","summary":"ADI Leak Detection engineer Adam Regan investigated a central heating leak in Warwick, Warwickshire (CV47 2), using thermal imaging, acoustic correlation, pressure testing and a damp meter. Leak location: beneath the tiled floor at the pipe exit. Work done: leaking end of the unequal tee fitting replaced. Outcome: inhibitors added but long-term effectiveness cannot be guaranteed.","triples":[["ADI case study 176","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 176","town","Warwick"],["ADI case study 176","postcode sector","CV47 2"],["ADI case study 176","county","Warwickshire"],["ADI case study 176","country","England"],["ADI case study 176","leak type","Central heating leak"],["ADI case study 176","service","Central Heating Leak Detection"],["ADI case study 176","service","Heating Leak Detection"],["ADI case study 176","engineer","Adam Regan"],["ADI case study 176","detection method","Thermal Imaging"],["ADI case study 176","detection method","Acoustic Correlation"],["ADI case study 176","detection method","Pressure Testing"],["ADI case study 176","detection method","Damp Meter"],["ADI case study 176","symptom","heating system at 0.0 bar on arrival"],["ADI case study 176","symptom","water running down the side of the well with apparent rust stains"],["ADI case study 176","symptom","water emerging from the floor where two pipes exited"],["ADI case study 176","system affected","heating system on an old oil boiler with 28 radiators and a hot water cylinder"],["ADI case study 176","test result","thermal imaging showed potential anomalies in the room next to the well"],["ADI case study 176","test result","system refilled to 2.0 bar dropped 1.0 bar within 30 minutes"],["ADI case study 176","test result","pressure testing and acoustics found an anomaly beneath the radiators and floor pipe exits"],["ADI case study 176","leak location","beneath the tiled floor at the pipe exit"],["ADI case study 176","leak location","leaking end of an unequal tee fitting"],["ADI case study 176","access made","tiled floor exposed, revealing dense concrete beneath"],["ADI case study 176","repair","leaking end of the unequal tee fitting replaced"],["ADI case study 176","repair","pipe cut and joined with a new connector and new section into the tee fitting"],["ADI case study 176","outcome","inhibitors added but long-term effectiveness cannot be guaranteed"],["ADI case study 176","recommendation","clean the system and add more inhibitors once it is working correctly"],["ADI case study 176","recommendation","assess whether the 24-litre expansion vessel suits 22mm pipework with 28 radiators"],["ADI case study 176","recommendation","fit any additional expansion vessel close to the boiler on the return line"]]},
{"id":175,"title":"underfloor heating leak in Nottingham (NG17 9)","summary":"ADI Leak Detection engineer Adam Regan investigated an underfloor heating leak in Nottingham, Nottinghamshire (NG17 9), using acoustic correlation, thermal imaging, tracer gas and pressure testing. Leak location: middle of the left side floor, where the thermal camera showed a faint anomaly. Work done: repair carried out by the onsite plumbers.","triples":[["ADI case study 175","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 175","town","Nottingham"],["ADI case study 175","postcode sector","NG17 9"],["ADI case study 175","county","Nottinghamshire"],["ADI case study 175","country","England"],["ADI case study 175","leak type","Underfloor heating leak"],["ADI case study 175","service","Underfloor Heating Leak Detection"],["ADI case study 175","service","Heating Leak Detection"],["ADI case study 175","engineer","Adam Regan"],["ADI case study 175","detection method","Acoustic Correlation"],["ADI case study 175","detection method","Thermal Imaging"],["ADI case study 175","detection method","Tracer Gas"],["ADI case study 175","detection method","Pressure Testing"],["ADI case study 175","property type","building under construction"],["ADI case study 175","system affected","underfloor heating pipework running on the left of the room, not the middle"],["ADI case study 175","test result","acoustics heard the leak but noise travelled along the ring configured runs"],["ADI case study 175","test result","tracer gas travelled along the pipe runs through a small channel in the screed"],["ADI case study 175","test result","warm water showed up against the cold floor, revealing some run locations"],["ADI case study 175","leak location","middle of the left side floor, where the thermal camera showed a faint anomaly"],["ADI case study 175","access made","anomaly area exposed by the onsite plumbers"],["ADI case study 175","repair","repair carried out by the onsite plumbers"],["ADI case study 175","recommendation","pressure test all runs again before laying any floor covering"]]},
{"id":174,"title":"central heating leak in Birmingham (B17 9)","summary":"ADI Leak Detection engineer Adam Regan investigated a central heating leak in Birmingham, West Midlands (B17 9), using acoustic correlation, a damp meter, an endoscope camera, pressure testing and visual inspection. Leak location: beneath the floorboards on the pipework supplying the radiator. Work done: repaired with plastic fusion-welded push-fit couplers, tees, elbows, inserts and 15 mm pipe.","triples":[["ADI case study 174","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 174","town","Birmingham"],["ADI case study 174","postcode sector","B17 9"],["ADI case study 174","county","West Midlands"],["ADI case study 174","country","England"],["ADI case study 174","leak type","Central heating leak"],["ADI case study 174","service","Central Heating Leak Detection"],["ADI case study 174","service","Heating Leak Detection"],["ADI case study 174","engineer","Adam Regan"],["ADI case study 174","detection method","Acoustic Correlation"],["ADI case study 174","detection method","Damp Meter"],["ADI case study 174","detection method","Endoscope Camera"],["ADI case study 174","detection method","Pressure Testing"],["ADI case study 174","detection method","Visual Inspection"],["ADI case study 174","symptom","damp damage in the kitchen"],["ADI case study 174","symptom","heating system not holding pressure"],["ADI case study 174","symptom","visible damage to the laminate flooring and MDF skirting boards"],["ADI case study 174","system affected","copper heating pipework running to the radiator in the extension"],["ADI case study 174","pipe material","copper"],["ADI case study 174","test result","acoustic anomaly at the same location as the kitchen radiator"],["ADI case study 174","test result","damp meter confirmed the laminate flooring was wet from a water leak"],["ADI case study 174","test result","system pressure dropped once the filling loop was isolated"],["ADI case study 174","leak location","beneath the floorboards on the pipework supplying the radiator"],["ADI case study 174","leak cause","blown joint, pipe separated from a 15 mm copper elbow fitting"],["ADI case study 174","access made","skirting board and affected section of laminate flooring cut and removed"],["ADI case study 174","access made","floorboards cut and lifted to expose the pipework supplying the radiator"],["ADI case study 174","repair","repaired with plastic fusion-welded push-fit couplers, tees, elbows, inserts and 15 mm pipe"],["ADI case study 174","recommendation","inform the insurance provider that the heating system burst beneath the floor"]]},
{"id":173,"title":"swimming pool leak in Moor Park (HA6 2)","summary":"ADI Leak Detection engineer Adam Regan investigated a swimming pool leak in Moor Park, Greater London (HA6 2), using acoustic correlation, an endoscope camera, pressure testing, leak dye, tracer gas and acoustic listening. Leak location: 20mm elbow on the mains feed to the auto top up pot. Work done: pot crack cleaned, surrounding area sanded and epoxy resin applied to both sides. Outcome: returns leak potentially happens when the pool filtration is off.","triples":[["ADI case study 173","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 173","town","Moor Park"],["ADI case study 173","postcode sector","HA6 2"],["ADI case study 173","county","Greater London"],["ADI case study 173","country","England"],["ADI case study 173","leak type","Swimming pool leak"],["ADI case study 173","service","Swimming Pool Leak Detection"],["ADI case study 173","engineer","Adam Regan"],["ADI case study 173","detection method","Acoustic Correlation"],["ADI case study 173","detection method","Endoscope Camera"],["ADI case study 173","detection method","Pressure Testing"],["ADI case study 173","detection method","Leak Dye"],["ADI case study 173","detection method","Tracer Gas"],["ADI case study 173","detection method","Acoustic Listening"],["ADI case study 173","system affected","mains feed to the auto top up pot"],["ADI case study 173","system affected","auto top up pot, which failed when tested"],["ADI case study 173","test result","pool returns would not hold pressure, acoustic anomalies at both outlets, deep end stronger"],["ADI case study 173","test result","no water loss from the auto pot or water meter with pumps running"],["ADI case study 173","test result","gas traces around the spa cannon pipe in the filtration room"],["ADI case study 173","leak location","20mm elbow on the mains feed to the auto top up pot"],["ADI case study 173","leak location","crack approximately 2 inches long along an edge of the auto top up pot"],["ADI case study 173","access made","tiled floor around the auto top up pot exposed, revealing dense steel reinforced concrete"],["ADI case study 173","access made","area around the auto top up pot exposed down and under to inspect its underside"],["ADI case study 173","repair","pot crack cleaned, surrounding area sanded and epoxy resin applied to both sides"],["ADI case study 173","repair","mains pipe cut back under the concrete and repositioned to come up correctly"],["ADI case study 173","repair","pipe reconnected to the float valve with new fittings, O ring, grab ring and nut"],["ADI case study 173","outcome","returns leak potentially happens when the pool filtration is off"],["ADI case study 173","outcome","water meter showed no measurable activity over the 3rd day"],["ADI case study 173","recommendation","leave the pool running and monitor the water meter for any usage"],["ADI case study 173","recommendation","expose down that side of the pool to confirm the returns leak"],["ADI case study 173","recommendation","move the spa filtration to the undercroft if possible"]]},
{"id":172,"title":"swimming pool leak in Leicester (LE6 0)","summary":"ADI Leak Detection engineer Adam Regan investigated a swimming pool leak in Leicester, Leicestershire (LE6 0), using pressure testing, acoustic correlation and visual inspection. Leak location: union fitting to the skimmer pot. Work done: one end of the leaking union replaced with a new one. Outcome: line from the union to the skimmer pot retested with no further drop.","triples":[["ADI case study 172","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 172","town","Leicester"],["ADI case study 172","postcode sector","LE6 0"],["ADI case study 172","county","Leicestershire"],["ADI case study 172","country","England"],["ADI case study 172","leak type","Swimming pool leak"],["ADI case study 172","service","Swimming Pool Leak Detection"],["ADI case study 172","engineer","Adam Regan"],["ADI case study 172","detection method","Pressure Testing"],["ADI case study 172","detection method","Acoustic Correlation"],["ADI case study 172","detection method","Visual Inspection"],["ADI case study 172","symptom","skimmer anomaly found on a previous visit"],["ADI case study 172","symptom","issues with the manifold valves found on the previous survey"],["ADI case study 172","system affected","skimmer line"],["ADI case study 172","test result","returns tested for 15 minutes at 1.0 bar showed no loss"],["ADI case study 172","test result","sump tested for 15 minutes at 1.0 bar showed no loss"],["ADI case study 172","test result","skimmer line showed the same loss and acoustic anomaly as the previous visit"],["ADI case study 172","leak location","union fitting to the skimmer pot"],["ADI case study 172","access made","slab cut and concrete broken up"],["ADI case study 172","repair","one end of the leaking union replaced with a new one"],["ADI case study 172","repair","manifold pipework replumbed with new valves and fittings back to the pump"],["ADI case study 172","outcome","line from the union to the skimmer pot retested with no further drop"],["ADI case study 172","outcome","pool re-dived and outlets including lights checked, no further issues found"],["ADI case study 172","recommendation","move the pump to the other side of the filter and extend manifold run"],["ADI case study 172","recommendation","install a larger pump due to the struggling pressure"]]},
{"id":163,"title":"internal cold mains leak in Walthamstow (E4 6)","summary":"ADI Leak Detection engineer Vincent Morgan investigated an internal cold mains leak in Walthamstow, Greater London (E4 6), using thermal imaging, tracer gas, acoustic correlation, a damp meter and visual inspection. Leak location: beneath the kitchen unit and concrete floor. Work done: damaged tee joint replaced with a new section of pipework and new fittings.","triples":[["ADI case study 163","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 163","town","Walthamstow"],["ADI case study 163","postcode sector","E4 6"],["ADI case study 163","county","Greater London"],["ADI case study 163","country","England"],["ADI case study 163","leak type","Internal cold mains leak"],["ADI case study 163","service","Water Mains Leak Detection"],["ADI case study 163","service","Internal Leak Detection"],["ADI case study 163","engineer","Vincent Morgan"],["ADI case study 163","detection method","Thermal Imaging"],["ADI case study 163","detection method","Tracer Gas"],["ADI case study 163","detection method","Acoustic Correlation"],["ADI case study 163","detection method","Damp Meter"],["ADI case study 163","detection method","Visual Inspection"],["ADI case study 163","symptom","high water bill"],["ADI case study 163","symptom","water damage to the skirting board and carpet in the lounge"],["ADI case study 163","symptom","water running beneath the suspended floor from the wall between lounge and kitchen"],["ADI case study 163","system affected","hot water supply pipework"],["ADI case study 163","test result","thermal imaging showed leaking pipework beneath the kitchen unit and concrete floor"],["ADI case study 163","test result","strong tracer gas indication directly under the kitchen unit"],["ADI case study 163","test result","acoustic testing confirmed the suspected leak area"],["ADI case study 163","leak location","beneath the kitchen unit and concrete floor"],["ADI case study 163","leak cause","damaged tee joint"],["ADI case study 163","access made","base of the kitchen unit cut away and concrete floor beneath exposed"],["ADI case study 163","repair","damaged tee joint replaced with a new section of pipework and new fittings"],["ADI case study 163","recommendation","reinstate the kitchen unit base and concrete floor"],["ADI case study 163","recommendation","a builder may be needed for the remedial works"],["ADI case study 163","recommendation","monitor the pipework in this area for future issues"]]},
{"id":153,"title":"hot water system leak in North Walsham (NR28 9)","summary":"ADI Leak Detection engineer Scott Hardcastle investigated a hot water system leak in North Walsham, Norfolk (NR28 9), using pressure testing, tracer gas and acoustic correlation. Leak location: two leaks beneath the kitchen floor in the area in front of the sink. Work done: pipework drained and a new section soldered in. Outcome: pipework tested at two bar and the pressure held.","triples":[["ADI case study 153","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 153","town","North Walsham"],["ADI case study 153","postcode sector","NR28 9"],["ADI case study 153","county","Norfolk"],["ADI case study 153","country","England"],["ADI case study 153","leak type","Hot water system leak"],["ADI case study 153","service","Hot Water Leak Detection"],["ADI case study 153","service","Internal Leak Detection"],["ADI case study 153","engineer","Scott Hardcastle"],["ADI case study 153","detection method","Pressure Testing"],["ADI case study 153","detection method","Tracer Gas"],["ADI case study 153","detection method","Acoustic Correlation"],["ADI case study 153","symptom","water observed coming up in the kitchen"],["ADI case study 153","symptom","rising damp along the walls and damaged skirting boards"],["ADI case study 153","symptom","hot water running out despite being isolated"],["ADI case study 153","test result","pressure dropped immediately with compressed air added under the kitchen sink"],["ADI case study 153","test result","tracer gas signal from the kitchen floor area in front of the sink"],["ADI case study 153","test result","pressure test after the first repair revealed a second leak close by"],["ADI case study 153","leak location","two leaks beneath the kitchen floor in the area in front of the sink"],["ADI case study 153","leak cause","no protective covering on the pipework beneath the screed, believed to be the cause"],["ADI case study 153","leak cause","hot pipe expanding and contracting against the concrete until it failed"],["ADI case study 153","access made","tiled floor and concrete screed broken up in the identified area"],["ADI case study 153","repair","pipework drained and a new section soldered in"],["ADI case study 153","repair","copper pipe and fitting used to repair the pipe"],["ADI case study 153","outcome","pipework tested at two bar and the pressure held"],["ADI case study 153","outcome","customer believed to need new underfloor heating"],["ADI case study 153","recommendation","obtain a survey from the insurance provider"],["ADI case study 153","recommendation","allow the affected area time to dry"],["ADI case study 153","recommendation","if flooring is removed, fit all new pipework insulated from the screed"]]},
{"id":151,"title":"hot water system leak in Nottingham (NG4 3)","summary":"ADI Leak Detection engineer Phillip Whitehouse investigated a hot water system leak in Nottingham, Nottinghamshire (NG4 3), using acoustic correlation, tracer gas, pressure testing, a borescope and sectional isolation. Leak location: beneath the bath. Work done: existing coupler replaced with a new 15mm Speedfit fitting. Outcome: whole plumbing system held 2 bar with no drop after the repair.","triples":[["ADI case study 151","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 151","town","Nottingham"],["ADI case study 151","postcode sector","NG4 3"],["ADI case study 151","county","Nottinghamshire"],["ADI case study 151","country","England"],["ADI case study 151","leak type","Hot water system leak"],["ADI case study 151","service","Hot Water Leak Detection"],["ADI case study 151","service","Internal Leak Detection"],["ADI case study 151","engineer","Phillip Whitehouse"],["ADI case study 151","detection method","Acoustic Correlation"],["ADI case study 151","detection method","Tracer Gas"],["ADI case study 151","detection method","Pressure Testing"],["ADI case study 151","detection method","Borescope"],["ADI case study 151","detection method","Sectional Isolation"],["ADI case study 151","property type","detached bungalow"],["ADI case study 151","symptom","suspected further leak after a previous leak was repaired by another plumber"],["ADI case study 151","system affected","capped-off section of hot water supply pipework"],["ADI case study 151","test result","remaining hot water system showed no pressure drop"],["ADI case study 151","test result","capped-off pipe unable to hold any pressure"],["ADI case study 151","leak location","beneath the bath"],["ADI case study 151","leak cause","open-ended pipe"],["ADI case study 151","repair","existing coupler replaced with a new 15mm Speedfit fitting"],["ADI case study 151","outcome","whole plumbing system held 2 bar with no drop after the repair"],["ADI case study 151","recommendation","have the bath re-sealed due to observed silicone leakage"]]},
{"id":150,"title":"internal cold mains leak in Telford (TF7 5)","summary":"ADI Leak Detection engineer Phillip Whitehouse investigated an internal cold mains leak in Telford, Shropshire (TF7 5), using acoustic correlation, tracer gas, pressure testing, a borescope and visual inspection. Leak location: on the cold feed beneath floorboards with a damp patch. Work done: 8 inches of holed copper cut out and replaced using 2 pressfit couplings. Outcome: floorboards and carpet refitted.","triples":[["ADI case study 150","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 150","town","Telford"],["ADI case study 150","postcode sector","TF7 5"],["ADI case study 150","county","Shropshire"],["ADI case study 150","country","England"],["ADI case study 150","leak type","Internal cold mains leak"],["ADI case study 150","service","Water Mains Leak Detection"],["ADI case study 150","service","Internal Leak Detection"],["ADI case study 150","engineer","Phillip Whitehouse"],["ADI case study 150","detection method","Acoustic Correlation"],["ADI case study 150","detection method","Tracer Gas"],["ADI case study 150","detection method","Pressure Testing"],["ADI case study 150","detection method","Borescope"],["ADI case study 150","detection method","Visual Inspection"],["ADI case study 150","property type","detached house"],["ADI case study 150","symptom","damp patch on the living room ceiling and wall"],["ADI case study 150","system affected","cold feed"],["ADI case study 150","pipe material","copper"],["ADI case study 150","test result","cold mains pressurised to 1.5 bar dropped 0.1 bar after 15 minutes"],["ADI case study 150","test result","pressure kept falling with the heating and then hot water systems isolated"],["ADI case study 150","test result","tracer gas method failed due to the leak rate"],["ADI case study 150","leak location","on the cold feed beneath floorboards with a damp patch"],["ADI case study 150","leak cause","pinhole in the cold feed pipe"],["ADI case study 150","access made","carpet lifted and floorboards removed"],["ADI case study 150","repair","8 inches of holed copper cut out and replaced using 2 pressfit couplings"],["ADI case study 150","outcome","floorboards and carpet refitted"]]},
{"id":148,"title":"central heating leak in Stafford (ST18 0)","summary":"ADI Leak Detection engineer Phillip Whitehouse investigated a central heating leak in Stafford, Staffordshire (ST18 0), using pressure testing, tracer gas and visual inspection. Leak location: beneath the hallway floor. Work done: damaged section replaced with 12-inch new pipe, compression coupling and press-fit elbow. Outcome: system held 1.5 bar for approximately one hour with no further loss.","triples":[["ADI case study 148","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 148","town","Stafford"],["ADI case study 148","postcode sector","ST18 0"],["ADI case study 148","county","Staffordshire"],["ADI case study 148","country","England"],["ADI case study 148","leak type","Central heating leak"],["ADI case study 148","service","Central Heating Leak Detection"],["ADI case study 148","service","Heating Leak Detection"],["ADI case study 148","engineer","Phillip Whitehouse"],["ADI case study 148","detection method","Pressure Testing"],["ADI case study 148","detection method","Tracer Gas"],["ADI case study 148","detection method","Visual Inspection"],["ADI case study 148","property type","detached house"],["ADI case study 148","symptom","loss of pressure in the heating system"],["ADI case study 148","test result","system pressurised to 1.5 bar dropped approximately 0.1 bar over 10 minutes"],["ADI case study 148","test result","strong tracer gas readings in the hallway"],["ADI case study 148","leak location","beneath the hallway floor"],["ADI case study 148","leak cause","small perforation in the pipe"],["ADI case study 148","access made","floor removed and excavation made to expose the leaking pipework"],["ADI case study 148","repair","damaged section replaced with 12-inch new pipe, compression coupling and press-fit elbow"],["ADI case study 148","outcome","system held 1.5 bar for approximately one hour with no further loss"],["ADI case study 148","recommendation","monitor heating system pressure regularly as unlagged pipework can be prone to issues"]]},
{"id":144,"title":"underfloor mains leak in Sheffield (S11 9)","summary":"ADI Leak Detection engineer Phillip Whitehouse investigated an underfloor mains leak in Sheffield, South Yorkshire (S11 9), using acoustic correlation, tracer gas, pressure testing and acoustic listening. Leak location: beneath the floor at the rear of the house. Work done: lead main capped using a leadlock fitting with a 15mm cap. Outcome: leak repaired.","triples":[["ADI case study 144","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 144","town","Sheffield"],["ADI case study 144","postcode sector","S11 9"],["ADI case study 144","county","South Yorkshire"],["ADI case study 144","country","England"],["ADI case study 144","leak type","Underfloor mains leak"],["ADI case study 144","service","Water Mains Leak Detection"],["ADI case study 144","service","Underground Leak Detection"],["ADI case study 144","engineer","Phillip Whitehouse"],["ADI case study 144","detection method","Acoustic Correlation"],["ADI case study 144","detection method","Tracer Gas"],["ADI case study 144","detection method","Pressure Testing"],["ADI case study 144","detection method","Acoustic Listening"],["ADI case study 144","property type","detached house"],["ADI case study 144","symptom","customer informed of a suspected leak"],["ADI case study 144","system affected","older lead mains pipe"],["ADI case study 144","pipe material","lead"],["ADI case study 144","test result","meter test showed no pressure drop on the mains supply leading to the house"],["ADI case study 144","test result","pressure test from the outside tap lost 0.5 bar over 90 seconds"],["ADI case study 144","test result","tracer gas readings at the rear of the house"],["ADI case study 144","leak location","beneath the floor at the rear of the house"],["ADI case study 144","access made","two floorboards cut and approximately 12 inches square of concrete removed"],["ADI case study 144","repair","lead main capped using a leadlock fitting with a 15mm cap"],["ADI case study 144","outcome","leak repaired"],["ADI case study 144","recommendation","leave the flooring open for a period so the concrete dries out"],["ADI case study 144","recommendation","contact the water supplier about potential refunds on water bills"]]},
{"id":143,"title":"underground water mains leak in Mottram St. Andrew (SK9 7)","summary":"ADI Leak Detection engineer Phillip Whitehouse investigated an underground water mains leak in Mottram St. Andrew, Cheshire (SK9 7), using acoustic correlation, tracer gas, an endoscope camera, pressure testing and visual inspection. Leak location: beside the external water meter. Work done: defective fitting removed and replaced with a new one. Outcome: repair pressure tested and confirmed sound.","triples":[["ADI case study 143","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 143","town","Mottram St. Andrew"],["ADI case study 143","postcode sector","SK9 7"],["ADI case study 143","county","Cheshire"],["ADI case study 143","country","England"],["ADI case study 143","leak type","Underground water mains leak"],["ADI case study 143","service","Water Mains Leak Detection"],["ADI case study 143","service","Underground Leak Detection"],["ADI case study 143","engineer","Phillip Whitehouse"],["ADI case study 143","detection method","Acoustic Correlation"],["ADI case study 143","detection method","Tracer Gas"],["ADI case study 143","detection method","Endoscope Camera"],["ADI case study 143","detection method","Pressure Testing"],["ADI case study 143","detection method","Visual Inspection"],["ADI case study 143","property type","detached house"],["ADI case study 143","test result","pressure test confirmed a pressure loss, identical to the previous visit"],["ADI case study 143","test result","high tracer gas readings directly beside the external meter"],["ADI case study 143","test result","acoustic testing confirmed the same spot beside the external meter"],["ADI case study 143","leak location","beside the external water meter"],["ADI case study 143","leak cause","incorrectly installed fitting was badly cross-threaded and snapped at the thread"],["ADI case study 143","access made","ground excavated beside the external meter"],["ADI case study 143","repair","defective fitting removed and replaced with a new one"],["ADI case study 143","repair","25mm to 22mm reducing coupler used"],["ADI case study 143","outcome","repair pressure tested and confirmed sound"],["ADI case study 143","outcome","excavation backfilled"],["ADI case study 143","recommendation","contact the water board as the fault originated from their installation"]]},
{"id":142,"title":"underground water mains leak in Liverpool (L25 6)","summary":"ADI Leak Detection engineer Matthew Barron investigated an underground water mains leak in Liverpool, Merseyside (L25 6), using acoustic correlation, tracer gas, a damp meter, visual inspection and pressure testing. Leak location: beneath the concrete floor of the garage. Work done: temporary repair made with plastic fittings and pipe. Outcome: repair is temporary as the copper pipe is in poor condition.","triples":[["ADI case study 142","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 142","town","Liverpool"],["ADI case study 142","postcode sector","L25 6"],["ADI case study 142","county","Merseyside"],["ADI case study 142","country","England"],["ADI case study 142","leak type","Underground water mains leak"],["ADI case study 142","service","Water Mains Leak Detection"],["ADI case study 142","service","Underground Leak Detection"],["ADI case study 142","engineer","Matthew Barron"],["ADI case study 142","detection method","Acoustic Correlation"],["ADI case study 142","detection method","Tracer Gas"],["ADI case study 142","detection method","Damp Meter"],["ADI case study 142","detection method","Visual Inspection"],["ADI case study 142","detection method","Pressure Testing"],["ADI case study 142","symptom","water supply company notice of a leak on the property"],["ADI case study 142","symptom","water damage to the garage walls and adjacent kitchen wall"],["ADI case study 142","symptom","internal stop cock would not isolate, water still running through"],["ADI case study 142","system affected","branch from the main copper pipe to the garage tap"],["ADI case study 142","pipe material","copper"],["ADI case study 142","test result","major movement on the external meter micro dial"],["ADI case study 142","test result","tracer gas detected in the garage"],["ADI case study 142","test result","acoustic check found water movement in the garage"],["ADI case study 142","leak location","beneath the concrete floor of the garage"],["ADI case study 142","leak cause","branch from the main copper pipe to the garage tap had snapped off"],["ADI case study 142","access made","concrete floor and ground in the garage excavated"],["ADI case study 142","repair","temporary repair made with plastic fittings and pipe"],["ADI case study 142","outcome","repair is temporary as the copper pipe is in poor condition"],["ADI case study 142","recommendation","replace the 15mm copper mains pipe with 25mm MDPE blue plastic pipe"],["ADI case study 142","recommendation","replace the internal stop cock as it cannot isolate"],["ADI case study 142","recommendation","let the ground settle before repairing the garage concrete floor"]]},
{"id":141,"title":"central heating leak in Wyke (BD12 9)","summary":"ADI Leak Detection engineer Matthew Barron investigated a central heating leak in Wyke, West Yorkshire (BD12 9), using acoustic correlation, tracer gas, a damp meter and pressure testing. Leak location: pipework connected to the radiator in the room between the 2 bedrooms. Work done: damaged copper pipe repaired with 15mm plastic pipe and kwik fit couplings. Outcome: heating pipework held 2.4 bar for 20 minutes after the repair.","triples":[["ADI case study 141","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 141","town","Wyke"],["ADI case study 141","postcode sector","BD12 9"],["ADI case study 141","county","West Yorkshire"],["ADI case study 141","country","England"],["ADI case study 141","leak type","Central heating leak"],["ADI case study 141","service","Central Heating Leak Detection"],["ADI case study 141","service","Heating Leak Detection"],["ADI case study 141","engineer","Matthew Barron"],["ADI case study 141","detection method","Acoustic Correlation"],["ADI case study 141","detection method","Tracer Gas"],["ADI case study 141","detection method","Damp Meter"],["ADI case study 141","detection method","Pressure Testing"],["ADI case study 141","symptom","boiler losing pressure"],["ADI case study 141","symptom","customer notified of a leak on the heating system"],["ADI case study 141","pipe material","copper"],["ADI case study 141","test result","pressure test on the heating system failed"],["ADI case study 141","test result","tracer gas detected in the room between the 2 bedrooms"],["ADI case study 141","leak location","pipework connected to the radiator in the room between the 2 bedrooms"],["ADI case study 141","leak cause","screw fitted when remounting the new radiator bracket punctured the pipe"],["ADI case study 141","access made","access made into both walls to locate the leak"],["ADI case study 141","repair","damaged copper pipe repaired with 15mm plastic pipe and kwik fit couplings"],["ADI case study 141","outcome","heating pipework held 2.4 bar for 20 minutes after the repair"],["ADI case study 141","outcome","heating system would not switch on after the radiators were bled"],["ADI case study 141","recommendation","repair the damage to the 2 walls"],["ADI case study 141","recommendation","have the boiler heating system checked as it was not heating the radiators"]]},
{"id":137,"title":"internal cold mains leak in Menston (LS29 6)","summary":"ADI Leak Detection engineer Matthew Barron investigated an internal cold mains leak in Menston, West Yorkshire (LS29 6), using acoustic correlation, tracer gas, a damp meter, pressure testing and visual inspection. Leak location: pipework feeding the teacher desk tap, buried in concrete. Work done: teacher desk tap supply capped with a 15mm compression fitting stop end cap. Outcome: capped supply held 3.0 bar for 30 minutes with no pressure drop.","triples":[["ADI case study 137","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 137","town","Menston"],["ADI case study 137","postcode sector","LS29 6"],["ADI case study 137","county","West Yorkshire"],["ADI case study 137","country","England"],["ADI case study 137","leak type","Internal cold mains leak"],["ADI case study 137","service","Water Mains Leak Detection"],["ADI case study 137","service","Internal Leak Detection"],["ADI case study 137","customer type","School / Commercial Property"],["ADI case study 137","engineer","Matthew Barron"],["ADI case study 137","detection method","Acoustic Correlation"],["ADI case study 137","detection method","Tracer Gas"],["ADI case study 137","detection method","Damp Meter"],["ADI case study 137","detection method","Pressure Testing"],["ADI case study 137","detection method","Visual Inspection"],["ADI case study 137","property type","school"],["ADI case study 137","symptom","notice of a leak received for the property"],["ADI case study 137","symptom","hissing noise in one of the classrooms"],["ADI case study 137","symptom","water saturating the field area closest to the classroom with the hissing noise"],["ADI case study 137","system affected","pipework supplying only the teacher desk tap"],["ADI case study 137","test result","external mains meter timed at 1 litre every 5 seconds"],["ADI case study 137","test result","limited meter movement once the supply to that part of the building was isolated"],["ADI case study 137","test result","tracer gas detected in the classroom with the hissing noise"],["ADI case study 137","leak location","pipework feeding the teacher desk tap, buried in concrete"],["ADI case study 137","repair","teacher desk tap supply capped with a 15mm compression fitting stop end cap"],["ADI case study 137","outcome","capped supply held 3.0 bar for 30 minutes with no pressure drop"],["ADI case study 137","outcome","teacher desk tap not currently supplied with water"],["ADI case study 137","recommendation","make the classroom teacher aware the desk tap has no water supply"]]},
{"id":136,"title":"internal cold mains leak in Pontefract (WF8 1)","summary":"ADI Leak Detection engineer Matthew Barron investigated an internal cold mains leak in Pontefract, West Yorkshire (WF8 1), using acoustic correlation, thermal imaging, tracer gas, a damp meter, an endoscope camera, pressure testing and a borescope. Leak location: 22mm end cap on capped off pipework. Work done: 22mm end cap replaced with a new one. Outcome: pressure held at 3.4 bar for 20 minutes after the repair.","triples":[["ADI case study 136","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 136","town","Pontefract"],["ADI case study 136","postcode sector","WF8 1"],["ADI case study 136","county","West Yorkshire"],["ADI case study 136","country","England"],["ADI case study 136","leak type","Internal cold mains leak"],["ADI case study 136","service","Water Mains Leak Detection"],["ADI case study 136","service","Internal Leak Detection"],["ADI case study 136","engineer","Matthew Barron"],["ADI case study 136","detection method","Acoustic Correlation"],["ADI case study 136","detection method","Thermal Imaging"],["ADI case study 136","detection method","Tracer Gas"],["ADI case study 136","detection method","Damp Meter"],["ADI case study 136","detection method","Endoscope Camera"],["ADI case study 136","detection method","Pressure Testing"],["ADI case study 136","detection method","Borescope"],["ADI case study 136","symptom","wet carpet and signs of water damage in the bedroom cupboard"],["ADI case study 136","system affected","internal cold feed"],["ADI case study 136","test result","internal cold feed dropped from 3.4 bar to 2.2 bar in 15 minutes"],["ADI case study 136","test result","tracer gas detected in the bedroom corner by the cupboard"],["ADI case study 136","test result","signs of water inside the cupboard wall cavity"],["ADI case study 136","leak location","22mm end cap on capped off pipework"],["ADI case study 136","leak location","inside the wall cavity shared by the bathroom and bedroom"],["ADI case study 136","access made","small hole drilled in the cupboard wall for endoscope inspection"],["ADI case study 136","access made","access made to the wall via the bedroom cupboard and pipework exposed"],["ADI case study 136","repair","22mm end cap replaced with a new one"],["ADI case study 136","outcome","pressure held at 3.4 bar for 20 minutes after the repair"],["ADI case study 136","recommendation","drying and restoration programme for the bedroom and bathroom"],["ADI case study 136","recommendation","repair the bathroom sink drainage"],["ADI case study 136","recommendation","repair all silicone seals around the shower"]]},
{"id":135,"title":"internal cold mains leak in Wakefield (WF3 1)","summary":"ADI Leak Detection engineer Matthew Barron investigated an internal cold mains leak in Wakefield, West Yorkshire (WF3 1), using thermal imaging, tracer gas, a damp meter, an endoscope camera and pressure testing. Leak location: push fit tap connector in the ceiling cavity. Work done: new 3/4 to 22mm push fit tap connector, 50cm long, installed.","triples":[["ADI case study 135","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 135","town","Wakefield"],["ADI case study 135","postcode sector","WF3 1"],["ADI case study 135","county","West Yorkshire"],["ADI case study 135","country","England"],["ADI case study 135","leak type","Internal cold mains leak"],["ADI case study 135","service","Water Mains Leak Detection"],["ADI case study 135","service","Internal Leak Detection"],["ADI case study 135","engineer","Matthew Barron"],["ADI case study 135","detection method","Thermal Imaging"],["ADI case study 135","detection method","Tracer Gas"],["ADI case study 135","detection method","Damp Meter"],["ADI case study 135","detection method","Endoscope Camera"],["ADI case study 135","detection method","Pressure Testing"],["ADI case study 135","symptom","water damage and water dripping from the ceiling by the entrance"],["ADI case study 135","test result","internal pressure test failed"],["ADI case study 135","test result","tracer gas detected in the bathroom above the area of water damage"],["ADI case study 135","test result","endoscope camera found water escaping in the ceiling cavity"],["ADI case study 135","leak location","push fit tap connector in the ceiling cavity"],["ADI case study 135","access made","access made to the ceiling by the entrance"],["ADI case study 135","access made","access made to the subfloor in the bathroom above"],["ADI case study 135","repair","new 3/4 to 22mm push fit tap connector, 50cm long, installed"],["ADI case study 135","recommendation","investigate and repair all water damage, as wood rot is present"]]},
{"id":133,"title":"underground water mains leak in Sheffield (S8 9)","summary":"ADI Leak Detection engineer Matthew Barron investigated an underground water mains leak in Sheffield, South Yorkshire (S8 9), using acoustic correlation, tracer gas, a damp meter, pressure testing and flow metering. Leak location: beneath the concrete pathway just outside the property. Work done: temporary repair completed and hole backfilled with 4 bags of building sand. Outcome: temporary repair in place, lead pipe in poor condition with compromised integrity.","triples":[["ADI case study 133","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 133","town","Sheffield"],["ADI case study 133","postcode sector","S8 9"],["ADI case study 133","county","South Yorkshire"],["ADI case study 133","country","England"],["ADI case study 133","leak type","Underground water mains leak"],["ADI case study 133","service","Water Mains Leak Detection"],["ADI case study 133","service","Underground Leak Detection"],["ADI case study 133","engineer","Matthew Barron"],["ADI case study 133","detection method","Acoustic Correlation"],["ADI case study 133","detection method","Tracer Gas"],["ADI case study 133","detection method","Damp Meter"],["ADI case study 133","detection method","Pressure Testing"],["ADI case study 133","detection method","Flow Metering"],["ADI case study 133","symptom","water supplier gave notice of a leak on the property"],["ADI case study 133","symptom","water damage on the basement walls"],["ADI case study 133","system affected","external water mains pipe"],["ADI case study 133","pipe material","lead"],["ADI case study 133","test result","leak rate of 1 litre every 1 minute 24 seconds at the meter"],["ADI case study 133","test result","pressure test on the external water mains pipe failed"],["ADI case study 133","test result","acoustics detected water movement just outside the property by the pathway"],["ADI case study 133","leak location","beneath the concrete pathway just outside the property"],["ADI case study 133","leak location","multiple leaks on the lead pipe"],["ADI case study 133","access made","concrete pathway just outside the property excavated"],["ADI case study 133","repair","temporary repair completed and hole backfilled with 4 bags of building sand"],["ADI case study 133","repair","universal transition couplers, inserts and 25mm blue MDPE pipe used"],["ADI case study 133","outcome","temporary repair in place, lead pipe in poor condition with compromised integrity"],["ADI case study 133","recommendation","replace the degraded lead water main to prevent further leaks"],["ADI case study 133","recommendation","drying and restoration programme for the basement water damage"]]},
{"id":130,"title":"internal cold mains leak in Bewbush (RH12 3)","summary":"ADI Leak Detection engineer Kyle Storkey investigated an internal cold mains leak in Bewbush, West Sussex (RH12 3), using acoustic correlation, thermal imaging, tracer gas, a damp meter and pressure testing. Leak location: beneath the kitchen tile work and concrete floor. Work done: cold water repair made with a 15mm plastic straight connector and 15mm plastic pipe.","triples":[["ADI case study 130","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 130","town","Bewbush"],["ADI case study 130","postcode sector","RH12 3"],["ADI case study 130","county","West Sussex"],["ADI case study 130","country","England"],["ADI case study 130","leak type","Internal cold mains leak"],["ADI case study 130","service","Water Mains Leak Detection"],["ADI case study 130","service","Internal Leak Detection"],["ADI case study 130","customer type","Commercial Property"],["ADI case study 130","engineer","Kyle Storkey"],["ADI case study 130","detection method","Acoustic Correlation"],["ADI case study 130","detection method","Thermal Imaging"],["ADI case study 130","detection method","Tracer Gas"],["ADI case study 130","detection method","Damp Meter"],["ADI case study 130","detection method","Pressure Testing"],["ADI case study 130","symptom","water pooling on the entrance foyer concrete floor once the carpet was pulled back"],["ADI case study 130","symptom","flaking paintwork on walls of the entrance foyer, downstairs toilet and kitchen"],["ADI case study 130","symptom","discoloured wooden flooring in the office area"],["ADI case study 130","system affected","cold water pipe"],["ADI case study 130","test result","thermal imaging found an anomaly at the kitchen floor"],["ADI case study 130","test result","pressure test on the cold water pipe found a drop in pressure"],["ADI case study 130","test result","large amounts of tracer gas at the entrance foyer and kitchen threshold"],["ADI case study 130","leak location","beneath the kitchen tile work and concrete floor"],["ADI case study 130","access made","access made through the kitchen tile work and concrete floor"],["ADI case study 130","repair","cold water repair made with a 15mm plastic straight connector and 15mm plastic pipe"],["ADI case study 130","recommendation","strip out the water damaged rooms"],["ADI case study 130","recommendation","install a drying programme within the property"],["ADI case study 130","recommendation","reinstatement and redecorating once all areas are dried out"]]},
{"id":125,"title":"underground water mains leak in Woodley (RG10 0)","summary":"ADI Leak Detection engineer Kyle Storkey investigated an underground water mains leak in Woodley, Berkshire (RG10 0), using acoustic correlation, thermal imaging, tracer gas and a damp meter. Leak location: mains connection where 28mm steel reduces to 15mm copper. Work done: new pipe and connections used for the repair.","triples":[["ADI case study 125","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 125","town","Woodley"],["ADI case study 125","postcode sector","RG10 0"],["ADI case study 125","county","Berkshire"],["ADI case study 125","country","England"],["ADI case study 125","leak type","Underground water mains leak"],["ADI case study 125","service","Water Mains Leak Detection"],["ADI case study 125","service","Underground Leak Detection"],["ADI case study 125","engineer","Kyle Storkey"],["ADI case study 125","detection method","Acoustic Correlation"],["ADI case study 125","detection method","Thermal Imaging"],["ADI case study 125","detection method","Tracer Gas"],["ADI case study 125","detection method","Damp Meter"],["ADI case study 125","symptom","water damage to the kitchen and living room walls"],["ADI case study 125","system affected","mains water supply connection"],["ADI case study 125","pipe material","28mm steel reducing to 15mm copper"],["ADI case study 125","test result","thermal imaging found saturation areas in the kitchen and living room floor"],["ADI case study 125","test result","acoustics found audible evidence of a leak where the floor was saturated"],["ADI case study 125","test result","large amounts of tracer gas at the kitchen and living room floor"],["ADI case study 125","leak location","mains connection where 28mm steel reduces to 15mm copper"],["ADI case study 125","leak location","beneath the kitchen and living room floor"],["ADI case study 125","access made","floor tiles removed and concrete slab accessed"],["ADI case study 125","repair","new pipe and connections used for the repair"],["ADI case study 125","repair","15mm fittings and copper pipe used"],["ADI case study 125","recommendation","contact the insurance company about strip out, drying out and redecorating"]]},
{"id":123,"title":"internal cold mains leak in Cricklade (SN6 7)","summary":"ADI Leak Detection engineer Kyle Storkey investigated an internal cold mains leak in Cricklade, Wiltshire (SN6 7), using acoustic correlation, thermal imaging, tracer gas, a damp meter and pressure testing. Leak location: pinhole on the copper pipe in the utility room. Work done: temporary repair carried out.","triples":[["ADI case study 123","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 123","town","Cricklade"],["ADI case study 123","postcode sector","SN6 7"],["ADI case study 123","county","Wiltshire"],["ADI case study 123","country","England"],["ADI case study 123","leak type","Internal cold mains leak"],["ADI case study 123","service","Water Mains Leak Detection"],["ADI case study 123","service","Internal Leak Detection"],["ADI case study 123","engineer","Kyle Storkey"],["ADI case study 123","detection method","Acoustic Correlation"],["ADI case study 123","detection method","Thermal Imaging"],["ADI case study 123","detection method","Tracer Gas"],["ADI case study 123","detection method","Damp Meter"],["ADI case study 123","detection method","Pressure Testing"],["ADI case study 123","symptom","water damage to the kitchen and utility room walls and floor"],["ADI case study 123","symptom","water pooling on the concrete slab below the utility room lino"],["ADI case study 123","symptom","plumber removed the lino flooring but found no leak source"],["ADI case study 123","system affected","cold water pipework"],["ADI case study 123","pipe material","copper"],["ADI case study 123","test result","acoustics indicated a leak source on the cold water"],["ADI case study 123","test result","pressure test found a drop in pressure"],["ADI case study 123","test result","large amounts of tracer gas at the utility room floor"],["ADI case study 123","leak location","pinhole on the copper pipe in the utility room"],["ADI case study 123","access made","access works in the utility room"],["ADI case study 123","repair","temporary repair carried out"],["ADI case study 123","repair","15mm plastic fittings and pipe used"],["ADI case study 123","recommendation","permanent repair or reroute of the copper pipework to the utility room"],["ADI case study 123","recommendation","strip out and dry the water damaged areas"],["ADI case study 123","recommendation","reinstatement and redecorating once the areas have dried out"]]},
{"id":117,"title":"central heating leak in Torquay (TQ1 2)","summary":"ADI Leak Detection engineer James Bexter investigated a central heating leak in Torquay, Devon (TQ1 2), using thermal imaging, tracer gas, visual inspection and sectional isolation. Leak location: cold feed where it rubbed against the heating pipework in the concrete. Work done: section of copper cold feed pipe cut out and replaced where it had rubbed. Outcome: very slight leak on the unvented cylinder immersion boss noted when packing down.","triples":[["ADI case study 117","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 117","town","Torquay"],["ADI case study 117","postcode sector","TQ1 2"],["ADI case study 117","county","Devon"],["ADI case study 117","country","England"],["ADI case study 117","leak type","Central heating leak"],["ADI case study 117","service","Central Heating Leak Detection"],["ADI case study 117","service","Heating Leak Detection"],["ADI case study 117","engineer","James Bexter"],["ADI case study 117","detection method","Thermal Imaging"],["ADI case study 117","detection method","Tracer Gas"],["ADI case study 117","detection method","Visual Inspection"],["ADI case study 117","detection method","Sectional Isolation"],["ADI case study 117","symptom","heating system needing topping up after as little as 3 to 4 hours"],["ADI case study 117","symptom","floor visibly damp in places"],["ADI case study 117","system affected","internal cold feed"],["ADI case study 117","pipe material","copper"],["ADI case study 117","test result","tracer gas detected once the kitchen kick-boards were removed"],["ADI case study 117","test result","pipework with compression stop ends coming out of the concrete floor under the units"],["ADI case study 117","test result","thermal imaging showed the pipework running on the other side of the wall"],["ADI case study 117","leak location","cold feed where it rubbed against the heating pipework in the concrete"],["ADI case study 117","leak cause","cold feed rubbing against the heating pipework"],["ADI case study 117","access made","area on the other side of the wall excavated"],["ADI case study 117","access made","section of redundant pipework removed to allow the cold feed repair"],["ADI case study 117","repair","section of copper cold feed pipe cut out and replaced where it had rubbed"],["ADI case study 117","repair","tees feeding the old radiator position cut out and new pipework soldered in"],["ADI case study 117","repair","pipework then protected"],["ADI case study 117","outcome","very slight leak on the unvented cylinder immersion boss noted when packing down"],["ADI case study 117","recommendation","plumber to check the leaking immersion on the unvented cylinder at the boiler service"]]},
{"id":114,"title":"underground water mains leak in Taunton (TA2 6)","summary":"ADI Leak Detection engineer James Bexter investigated an underground water mains leak in Taunton, Somerset (TA2 6), using sectional isolation, pressure testing and acoustic correlation. Leak location: in waterlogged ground about 100 metres from the water meter. Work done: leaking fitting and a section of pipe removed and replaced with new.","triples":[["ADI case study 114","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 114","town","Taunton"],["ADI case study 114","postcode sector","TA2 6"],["ADI case study 114","county","Somerset"],["ADI case study 114","country","England"],["ADI case study 114","leak type","Underground water mains leak"],["ADI case study 114","service","Water Mains Leak Detection"],["ADI case study 114","service","Underground Leak Detection"],["ADI case study 114","engineer","James Bexter"],["ADI case study 114","detection method","Sectional Isolation"],["ADI case study 114","detection method","Pressure Testing"],["ADI case study 114","detection method","Acoustic Correlation"],["ADI case study 114","property type","farm house with farm buildings"],["ADI case study 114","system affected","water mains serving the farm house and taps in the farm buildings"],["ADI case study 114","pipe material","old black alkathene"],["ADI case study 114","test result","meter still showing the leak rate with the farm buildings and house isolated"],["ADI case study 114","test result","air introduced to the line located the leak in the waterlogged area"],["ADI case study 114","test result","incoming pressure about 3.5 bar at the time of testing"],["ADI case study 114","leak location","in waterlogged ground about 100 metres from the water meter"],["ADI case study 114","access made","land stripped back by the owner with an excavator to expose the pipe"],["ADI case study 114","repair","leaking fitting and a section of pipe removed and replaced with new"],["ADI case study 114","recommendation","consider a mains replacement if more leaks appear, as old alkathene goes brittle"]]},
{"id":113,"title":"underground water mains leak in Falmouth (TR2 4)","summary":"ADI Leak Detection engineer James Bexter investigated an underground water mains leak in Falmouth, Cornwall (TR2 4), using acoustic correlation, tracer gas, an endoscope camera, pressure testing and visual inspection. Leak location: beneath the patio outside the kitchen, about 1.2 metres from the internal stopcock. Work done: faulty 20mm tee fitting removed and replaced with a new fitting.","triples":[["ADI case study 113","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 113","town","Falmouth"],["ADI case study 113","postcode sector","TR2 4"],["ADI case study 113","county","Cornwall"],["ADI case study 113","country","England"],["ADI case study 113","leak type","Underground water mains leak"],["ADI case study 113","service","Water Mains Leak Detection"],["ADI case study 113","service","Underground Leak Detection"],["ADI case study 113","engineer","James Bexter"],["ADI case study 113","detection method","Acoustic Correlation"],["ADI case study 113","detection method","Tracer Gas"],["ADI case study 113","detection method","Endoscope Camera"],["ADI case study 113","detection method","Pressure Testing"],["ADI case study 113","detection method","Visual Inspection"],["ADI case study 113","property type","detached residence"],["ADI case study 113","system affected","external pipework"],["ADI case study 113","test result","steady pressure drop during a 30 minute test at 3 bar"],["ADI case study 113","test result","tracer gas near the kitchen window, across the wall from the internal stopcock"],["ADI case study 113","test result","fitting identified about 1.2 metres along the pipe, confirmed by endoscope camera"],["ADI case study 113","leak location","beneath the patio outside the kitchen, about 1.2 metres from the internal stopcock"],["ADI case study 113","leak location","20mm tee fitting"],["ADI case study 113","leak cause","tee fitting appears to have failed due to root ingress from nearby vegetation"],["ADI case study 113","access made","area of the patio outside the kitchen excavated"],["ADI case study 113","repair","faulty 20mm tee fitting removed and replaced with a new fitting"],["ADI case study 113","recommendation","contact the buildings insurer about trace and access cover"],["ADI case study 113","recommendation","monitor the area for future signs of damp or water ingress"],["ADI case study 113","recommendation","specialist investigation if structural or damp-proofing concerns arise"]]},
{"id":108,"title":"central heating leak in Edinburgh (EH12 8)","summary":"ADI Leak Detection engineer Hamaad Janjua investigated a central heating leak in Edinburgh, Midlothian (EH12 8), using thermal imaging, a damp meter, pressure testing, tracer gas and a borescope. Leak location: pipe connection to a radiator in the upstairs bedroom. Work done: affected section of pipework cut back and replaced. Outcome: system passed re-test after the repair with no further pressure loss.","triples":[["ADI case study 108","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 108","town","Edinburgh"],["ADI case study 108","postcode sector","EH12 8"],["ADI case study 108","county","Midlothian"],["ADI case study 108","country","Scotland"],["ADI case study 108","leak type","Central heating leak"],["ADI case study 108","service","Central Heating Leak Detection"],["ADI case study 108","service","Heating Leak Detection"],["ADI case study 108","engineer","Hamaad Janjua"],["ADI case study 108","detection method","Thermal Imaging"],["ADI case study 108","detection method","Damp Meter"],["ADI case study 108","detection method","Pressure Testing"],["ADI case study 108","detection method","Tracer Gas"],["ADI case study 108","detection method","Borescope"],["ADI case study 108","property type","two-storey property"],["ADI case study 108","symptom","intermittent pressure loss, as often as every 30 minutes or over up to 2 days"],["ADI case study 108","test result","thermal imaging found a damp area in the kitchen ceiling with elevated moisture readings"],["ADI case study 108","test result","pressure test on the heating system failed"],["ADI case study 108","test result","positive tracer gas result in the upstairs bedroom"],["ADI case study 108","leak location","pipe connection to a radiator in the upstairs bedroom"],["ADI case study 108","repair","affected section of pipework cut back and replaced"],["ADI case study 108","repair","new radiator blanking plug, radiator tail and lockshield valve installed"],["ADI case study 108","outcome","system passed re-test after the repair with no further pressure loss"],["ADI case study 108","outcome","three radiators not heating after recommissioning, heavily blocked with sludge"],["ADI case study 108","recommendation","full power flush of the heating system to remove sludge and debris"]]},
{"id":103,"title":"internal cold mains leak in Carlisle (CA4 8)","summary":"ADI Leak Detection engineer Hamaad Janjua investigated an internal cold mains leak in Carlisle, Cumbria (CA4 8), using acoustic correlation, thermal imaging, tracer gas, pressure testing, a damp meter and a borescope. Leak location: beneath the concrete floor in the kitchen utility area. Work done: two sections of pipework cut out and replaced with new elbows, fittings and pipework. Outcome: repair retested and all tests passed at the time of the visit.","triples":[["ADI case study 103","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 103","town","Carlisle"],["ADI case study 103","postcode sector","CA4 8"],["ADI case study 103","county","Cumbria"],["ADI case study 103","country","England"],["ADI case study 103","leak type","Internal cold mains leak"],["ADI case study 103","service","Water Mains Leak Detection"],["ADI case study 103","service","Internal Leak Detection"],["ADI case study 103","engineer","Hamaad Janjua"],["ADI case study 103","detection method","Acoustic Correlation"],["ADI case study 103","detection method","Thermal Imaging"],["ADI case study 103","detection method","Tracer Gas"],["ADI case study 103","detection method","Pressure Testing"],["ADI case study 103","detection method","Damp Meter"],["ADI case study 103","detection method","Borescope"],["ADI case study 103","property type","two-storey dwelling"],["ADI case study 103","symptom","mains water leak with no clear internal or external source"],["ADI case study 103","system affected","cold and hot feed pipework"],["ADI case study 103","test result","usage stopped with the supply off at the meter, indicating an internal leak"],["ADI case study 103","test result","internal mains failed the pressure test"],["ADI case study 103","test result","positive gas, high moisture and positive acoustic results in the kitchen utility area"],["ADI case study 103","leak location","beneath the concrete floor in the kitchen utility area"],["ADI case study 103","access made","concrete floor excavated to expose the leaking pipework"],["ADI case study 103","access made","washing machine power cable cut so it could be moved"],["ADI case study 103","repair","two sections of pipework cut out and replaced with new elbows, fittings and pipework"],["ADI case study 103","repair","service valve installed as there were no other hot or cold isolation points"],["ADI case study 103","outcome","repair retested and all tests passed at the time of the visit"],["ADI case study 103","outcome","excavated section not to be reinstated in concrete, with a board over it"],["ADI case study 103","recommendation","do not rebury the pipework in concrete so the service valves stay accessible"]]},
{"id":102,"title":"internal cold mains leak in Attleborough (NR17 1)","summary":"ADI Leak Detection engineer Grant Corney investigated an internal cold mains leak in Attleborough, Norfolk (NR17 1), using thermal imaging, tracer gas, a damp meter, pressure testing and visual inspection. Leak location: cold supply pipe beneath the bathroom concrete floor where it rises. Work done: leaking pipework cut out and repaired with plastic push fit, not a permanent repair. Outcome: pressure held after the repair with no further leaks.","triples":[["ADI case study 102","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 102","town","Attleborough"],["ADI case study 102","postcode sector","NR17 1"],["ADI case study 102","county","Norfolk"],["ADI case study 102","country","England"],["ADI case study 102","leak type","Internal cold mains leak"],["ADI case study 102","service","Water Mains Leak Detection"],["ADI case study 102","service","Internal Leak Detection"],["ADI case study 102","engineer","Grant Corney"],["ADI case study 102","detection method","Thermal Imaging"],["ADI case study 102","detection method","Tracer Gas"],["ADI case study 102","detection method","Damp Meter"],["ADI case study 102","detection method","Pressure Testing"],["ADI case study 102","detection method","Visual Inspection"],["ADI case study 102","symptom","water damage on the utility concrete floor next to the bathroom"],["ADI case study 102","symptom","leak noise heard between the sink and bathroom"],["ADI case study 102","system affected","cold supply under the concrete floor feeding the bathroom and washing machine"],["ADI case study 102","test result","cold supply pressure dropped from 2 bar to 0 within five minutes"],["ADI case study 102","test result","thermal camera cold patch where the cold supply comes up through the concrete floor"],["ADI case study 102","test result","tracer gas readings behind boxing in the bathroom where the cold supply comes up"],["ADI case study 102","leak location","cold supply pipe beneath the bathroom concrete floor where it rises"],["ADI case study 102","leak cause","hole in unprotected pipework in very poor condition"],["ADI case study 102","access made","area dug out to expose the cold supply"],["ADI case study 102","repair","leaking pipework cut out and repaired with plastic push fit, not a permanent repair"],["ADI case study 102","repair","15mm plastic pipe and two push fit fittings used"],["ADI case study 102","outcome","pressure held after the repair with no further leaks"],["ADI case study 102","recommendation","bypass the cold supply from the kitchen to the bathroom above ground behind the units"]]},
{"id":101,"title":"underfloor heating leak in Battle (TN31 6)","summary":"ADI Leak Detection engineer Grant Corney investigated an underfloor heating leak in Battle, East Sussex (TN31 6), using thermal imaging, a damp meter, pressure testing, an endoscope camera, acoustic listening and leak dye. Leak location: 22mm/22mm/15mm tee on the hot supply. Work done: fitting taken out and replaced with a Hep20 22mm/22mm/15mm tee. Outcome: pressure held on retest with no further current leaks.","triples":[["ADI case study 101","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 101","town","Battle"],["ADI case study 101","postcode sector","TN31 6"],["ADI case study 101","county","East Sussex"],["ADI case study 101","country","England"],["ADI case study 101","leak type","Underfloor heating leak"],["ADI case study 101","service","Underfloor Heating Leak Detection"],["ADI case study 101","service","Heating Leak Detection"],["ADI case study 101","engineer","Grant Corney"],["ADI case study 101","detection method","Thermal Imaging"],["ADI case study 101","detection method","Damp Meter"],["ADI case study 101","detection method","Pressure Testing"],["ADI case study 101","detection method","Endoscope Camera"],["ADI case study 101","detection method","Acoustic Listening"],["ADI case study 101","detection method","Leak Dye"],["ADI case study 101","symptom","water coming out of the brickwork into the garden as a constant drip"],["ADI case study 101","symptom","water meter moving slightly every 2 minutes"],["ADI case study 101","symptom","water damage at the bottom of the boiler room plasterboard wall with skirting coming away"],["ADI case study 101","system affected","hot supply"],["ADI case study 101","test result","pressure dropping on the hot supply when all supplies were tested"],["ADI case study 101","test result","leak noise behind the plasterboard wall where the water damage and pipework are"],["ADI case study 101","test result","dye testing found no issues with the waste pipes under the property"],["ADI case study 101","leak location","22mm/22mm/15mm tee on the hot supply"],["ADI case study 101","leak location","behind the plasterboard wall in the boiler room"],["ADI case study 101","access made","access made behind the plasterboard wall"],["ADI case study 101","repair","fitting taken out and replaced with a Hep20 22mm/22mm/15mm tee"],["ADI case study 101","outcome","pressure held on retest with no further current leaks"],["ADI case study 101","recommendation","have a drying out process carried out"]]},
{"id":100,"title":"hot water system leak in Gravesend (ME3 8)","summary":"ADI Leak Detection engineer Grant Corney investigated a hot water system leak in Gravesend, Kent (ME3 8), using thermal imaging, tracer gas, a damp meter, pressure testing and acoustic listening. Leak location: pinhole on the hot supply pipe. Work done: leaking pipework cut out and replaced with 15mm copper pipework. Outcome: pressure held after the repair with no further leaks.","triples":[["ADI case study 100","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 100","town","Gravesend"],["ADI case study 100","postcode sector","ME3 8"],["ADI case study 100","county","Kent"],["ADI case study 100","country","England"],["ADI case study 100","leak type","Hot water system leak"],["ADI case study 100","service","Hot Water Leak Detection"],["ADI case study 100","service","Internal Leak Detection"],["ADI case study 100","engineer","Grant Corney"],["ADI case study 100","detection method","Thermal Imaging"],["ADI case study 100","detection method","Tracer Gas"],["ADI case study 100","detection method","Damp Meter"],["ADI case study 100","detection method","Pressure Testing"],["ADI case study 100","detection method","Acoustic Listening"],["ADI case study 100","symptom","large amount of water damage to kitchen utilities and bathroom walls"],["ADI case study 100","symptom","water coming up through the bathroom lino behind the sink"],["ADI case study 100","symptom","water meter slowly moving, indicating a leak"],["ADI case study 100","system affected","hot supply pipework"],["ADI case study 100","test result","thermal cold patch behind the toilet and sink where the pipework runs in a void"],["ADI case study 100","test result","hot supply pressure dropping slowly on a test from under the utility sink"],["ADI case study 100","test result","leak noise and high tracer gas readings in the wall behind the sink"],["ADI case study 100","leak location","pinhole on the hot supply pipe"],["ADI case study 100","leak location","in the wall behind the sink"],["ADI case study 100","access made","heavy sink taken off the wall and laid on timbers"],["ADI case study 100","access made","tile where the pipes came through cut out"],["ADI case study 100","repair","leaking pipework cut out and replaced with 15mm copper pipework"],["ADI case study 100","outcome","pressure held after the repair with no further leaks"],["ADI case study 100","outcome","everything turned back on and in working order"],["ADI case study 100","recommendation","drying out process, with a referred company to be in contact"]]},
{"id":99,"title":"central heating leak in Chelmsford (CO6 3)","summary":"ADI Leak Detection engineer Grant Corney investigated a central heating leak in Chelmsford, Essex (CO6 3), using acoustic listening, tracer gas, a damp meter and visual inspection. Leak location: push fit fitting on the heating pipework along the wall behind the fridge freezer. Work done: leaking push fit fitting cut out and replaced using two push fit couplers. Outcome: tracer gas retest found no other leaks with pressure holding.","triples":[["ADI case study 99","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 99","town","Chelmsford"],["ADI case study 99","postcode sector","CO6 3"],["ADI case study 99","county","Essex"],["ADI case study 99","country","England"],["ADI case study 99","leak type","Central heating leak"],["ADI case study 99","service","Central Heating Leak Detection"],["ADI case study 99","service","Heating Leak Detection"],["ADI case study 99","engineer","Grant Corney"],["ADI case study 99","detection method","Acoustic Listening"],["ADI case study 99","detection method","Tracer Gas"],["ADI case study 99","detection method","Damp Meter"],["ADI case study 99","detection method","Visual Inspection"],["ADI case study 99","symptom","heating not working well enough to use the thermal camera"],["ADI case study 99","pipe material","copper"],["ADI case study 99","test result","tracer gas readings behind the fridge freezer, with skirting coming away from water damage"],["ADI case study 99","test result","leak noise heard and damp readings on walls and floors around the area"],["ADI case study 99","leak location","push fit fitting on the heating pipework along the wall behind the fridge freezer"],["ADI case study 99","access made","area along the wall exposed"],["ADI case study 99","repair","leaking push fit fitting cut out and replaced using two push fit couplers"],["ADI case study 99","repair","push fit couplers used because the pipe was too poor to solder"],["ADI case study 99","outcome","tracer gas retest found no other leaks with pressure holding"],["ADI case study 99","outcome","heating system refilled and in working order before leaving"],["ADI case study 99","recommendation","replace as much copper pipework as possible, as it is in very poor condition"]]},
{"id":98,"title":"central heating leak in Burpham (GU4 7)","summary":"ADI Leak Detection engineer Grant Corney investigated a central heating leak in Burpham, Surrey (GU4 7), using thermal imaging, acoustic correlation, a damp meter and visual inspection. Leak location: leaking push fit coupler on very shallow pipework. Work done: section cut out and repaired using crimped fittings. Outcome: boiler topped up with inhibitor and pressure monitored with no loss.","triples":[["ADI case study 98","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 98","town","Burpham"],["ADI case study 98","postcode sector","GU4 7"],["ADI case study 98","county","Surrey"],["ADI case study 98","country","England"],["ADI case study 98","leak type","Central heating leak"],["ADI case study 98","service","Central Heating Leak Detection"],["ADI case study 98","service","Heating Leak Detection"],["ADI case study 98","engineer","Grant Corney"],["ADI case study 98","detection method","Thermal Imaging"],["ADI case study 98","detection method","Acoustic Correlation"],["ADI case study 98","detection method","Damp Meter"],["ADI case study 98","detection method","Visual Inspection"],["ADI case study 98","symptom","boiler dropping pressure within the hour"],["ADI case study 98","symptom","water coming up through gaps under the living room TV cabinet"],["ADI case study 98","test result","thermal camera showed a heat patch where water was coming up through the floor"],["ADI case study 98","test result","leak noise heard very clearly on the acoustic microphone"],["ADI case study 98","test result","damp readings around the same area, with water visible"],["ADI case study 98","leak location","leaking push fit coupler on very shallow pipework"],["ADI case study 98","leak location","beneath floor tiles in the concrete floor"],["ADI case study 98","leak cause","pipe slowly coming out of the push fit connection due to movement"],["ADI case study 98","access made","floor tiles taken up and concrete floor exposed"],["ADI case study 98","repair","section cut out and repaired using crimped fittings"],["ADI case study 98","repair","plastic pipework and crimped fittings used"],["ADI case study 98","outcome","boiler topped up with inhibitor and pressure monitored with no loss"],["ADI case study 98","recommendation","have the property dried out due to the amount of water damage"]]},
{"id":95,"title":"underground water mains leak in Kensington (W10 4)","summary":"ADI Leak Detection engineer Grant Corney investigated an underground water mains leak in Kensington, Greater London (W10 4), using acoustic correlation, tracer gas, pressure testing and acoustic listening. Leak location: underneath the concrete step just outside the front door. Work done: leaking fitting taken out and replaced with a new one. Outcome: pressure held and meter completely stationary after the repair.","triples":[["ADI case study 95","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 95","town","Kensington"],["ADI case study 95","postcode sector","W10 4"],["ADI case study 95","county","Greater London"],["ADI case study 95","country","England"],["ADI case study 95","leak type","Underground water mains leak"],["ADI case study 95","service","Water Mains Leak Detection"],["ADI case study 95","service","Underground Leak Detection"],["ADI case study 95","engineer","Grant Corney"],["ADI case study 95","detection method","Acoustic Correlation"],["ADI case study 95","detection method","Tracer Gas"],["ADI case study 95","detection method","Pressure Testing"],["ADI case study 95","detection method","Acoustic Listening"],["ADI case study 95","symptom","water meter showing roughly 1 litre every 5 minutes"],["ADI case study 95","system affected","incoming mains supply"],["ADI case study 95","test result","incoming mains pressure dropped from 2 bar to 0 bar within 5 minutes"],["ADI case study 95","test result","tracer gas readings around the inside of the front door area"],["ADI case study 95","test result","leak noise louder a little further under the concrete step outside the front door"],["ADI case study 95","leak location","underneath the concrete step just outside the front door"],["ADI case study 95","leak location","leaking 32mm fitting beneath the tile and concrete"],["ADI case study 95","access made","foot mat moved, skirting removed and floor panel lifted at the front door"],["ADI case study 95","access made","tile broken and concrete dug through to reach the leak"],["ADI case study 95","repair","leaking fitting taken out and replaced with a new one"],["ADI case study 95","repair","32mm and 25mm fittings with 32mm pipework used"],["ADI case study 95","outcome","pressure held and meter completely stationary after the repair"],["ADI case study 95","outcome","concrete step still to be made good on a later visit"],["ADI case study 95","recommendation","change all fittings to Philmac 35mm to 22mm copper fittings while the area is open"]]},
{"id":93,"title":"underground water mains leak in Haverhill (CO10 7)","summary":"ADI Leak Detection engineer Grant Corney investigated an underground water mains leak in Haverhill, Suffolk (CO10 7), using pressure testing, tracer gas, thermal imaging, a damp meter and visual inspection. Leak location: joint under the stopcock onto the black plastic pipe. Work done: nut on the leaking joint tightened. Outcome: joint bone dry with no further leaks and the meter stopped moving.","triples":[["ADI case study 93","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 93","town","Haverhill"],["ADI case study 93","postcode sector","CO10 7"],["ADI case study 93","county","Suffolk"],["ADI case study 93","country","England"],["ADI case study 93","leak type","Underground water mains leak"],["ADI case study 93","service","Water Mains Leak Detection"],["ADI case study 93","service","Underground Leak Detection"],["ADI case study 93","engineer","Grant Corney"],["ADI case study 93","detection method","Pressure Testing"],["ADI case study 93","detection method","Tracer Gas"],["ADI case study 93","detection method","Thermal Imaging"],["ADI case study 93","detection method","Damp Meter"],["ADI case study 93","detection method","Visual Inspection"],["ADI case study 93","symptom","meter still turning with the internal stop cock under the kitchen sink turned off"],["ADI case study 93","symptom","higher water bills"],["ADI case study 93","system affected","incoming water mains"],["ADI case study 93","pipe material","black plastic"],["ADI case study 93","test result","pressure test under the kitchen sink showed pressure dropping on the incoming mains"],["ADI case study 93","test result","tracer gas hissing heard from underneath the kitchen units"],["ADI case study 93","test result","continuous stream of water running down the pipe inside the duct with the meter on"],["ADI case study 93","leak location","joint under the stopcock onto the black plastic pipe"],["ADI case study 93","leak cause","likely accidental damage from the stopcock being knocked under the kitchen units"],["ADI case study 93","access made","kickboard removed from the kitchen units"],["ADI case study 93","repair","nut on the leaking joint tightened"],["ADI case study 93","outcome","joint bone dry with no further leaks and the meter stopped moving"],["ADI case study 93","recommendation","replace the stopcock with a lever valve positioned higher so it is not knocked"]]},
{"id":89,"title":"underground water mains leak in Oxford (OX3 0)","summary":"ADI Leak Detection engineer Gabor Weber investigated an underground water mains leak in Oxford, Oxfordshire (OX3 0), using pressure testing, acoustic correlation and visual inspection. Leak location: in the ground beneath the concrete driveway. Work done: damaged section replaced using UTC couplings and 25mm MDPE pipe. Outcome: pipework passed a retest for 40 minutes at 6 bar.","triples":[["ADI case study 89","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 89","town","Oxford"],["ADI case study 89","postcode sector","OX3 0"],["ADI case study 89","county","Oxfordshire"],["ADI case study 89","country","England"],["ADI case study 89","leak type","Underground water mains leak"],["ADI case study 89","service","Water Mains Leak Detection"],["ADI case study 89","service","Underground Leak Detection"],["ADI case study 89","engineer","Gabor Weber"],["ADI case study 89","detection method","Pressure Testing"],["ADI case study 89","detection method","Acoustic Correlation"],["ADI case study 89","detection method","Visual Inspection"],["ADI case study 89","symptom","water meter continuously spinning with the internal stopcock isolated"],["ADI case study 89","system affected","external main pipework"],["ADI case study 89","pipe material","lead"],["ADI case study 89","test result","internal cold feed pipework passed its pressure test"],["ADI case study 89","test result","external main pipework failed its pressure test"],["ADI case study 89","test result","acoustic anomaly on the driveway"],["ADI case study 89","leak location","in the ground beneath the concrete driveway"],["ADI case study 89","access made","concrete driveway and underlying ground exposed"],["ADI case study 89","repair","damaged section replaced using UTC couplings and 25mm MDPE pipe"],["ADI case study 89","outcome","pipework passed a retest for 40 minutes at 6 bar"],["ADI case study 89","recommendation","send a copy of the report to the water board"],["ADI case study 89","recommendation","consider replacing the remaining old lead pipework due to its age and material"]]},
{"id":88,"title":"hot water system leak in Aylesbury (LU7 0)","summary":"ADI Leak Detection engineer Gabor Weber investigated a hot water system leak in Aylesbury, Bedfordshire (LU7 0), using acoustic correlation, a damp meter, an endoscope camera, pressure testing and visual inspection. Leak location: beneath the raised wooden floor in the en suite bathroom. Work done: defective section removed and replaced with new copper pipe and fittings. Outcome: pipework passed a retest at 4 bar for 20 minutes with no further leaks.","triples":[["ADI case study 88","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 88","town","Aylesbury"],["ADI case study 88","postcode sector","LU7 0"],["ADI case study 88","county","Bedfordshire"],["ADI case study 88","country","England"],["ADI case study 88","leak type","Hot water system leak"],["ADI case study 88","service","Hot Water Leak Detection"],["ADI case study 88","service","Internal Leak Detection"],["ADI case study 88","engineer","Gabor Weber"],["ADI case study 88","detection method","Acoustic Correlation"],["ADI case study 88","detection method","Damp Meter"],["ADI case study 88","detection method","Endoscope Camera"],["ADI case study 88","detection method","Pressure Testing"],["ADI case study 88","detection method","Visual Inspection"],["ADI case study 88","symptom","damp en suite bathroom wall with loose tiles"],["ADI case study 88","system affected","hot feed pipework"],["ADI case study 88","pipe material","copper"],["ADI case study 88","test result","high moisture readings on the en suite floor and adjacent wall"],["ADI case study 88","test result","cold feed passed its pressure test but the hot feed failed"],["ADI case study 88","test result","significant rot found in the wooden floor and frame behind the bath panel"],["ADI case study 88","leak location","beneath the raised wooden floor in the en suite bathroom"],["ADI case study 88","access made","floor tiles, electric underfloor heating and raised wooden floor exposed"],["ADI case study 88","repair","defective section removed and replaced with new copper pipe and fittings"],["ADI case study 88","outcome","pipework passed a retest at 4 bar for 20 minutes with no further leaks"],["ADI case study 88","recommendation","leave the floor open until it dries out"],["ADI case study 88","recommendation","specialist to assess whether the wooden floor can be reused or needs replacing"]]},
{"id":87,"title":"central heating leak in Bedford (MK41 0)","summary":"ADI Leak Detection engineer Gabor Weber investigated a central heating leak in Bedford, Bedfordshire (MK41 0), using thermal imaging, pressure testing, acoustic listening, an endoscope camera and a damp meter. Leak location: beneath the bedroom floor. Work done: damaged section of pipework replaced with new copper pipe and fittings. Outcome: heating pipework passed a 2 bar pressure test for one hour after the repair.","triples":[["ADI case study 87","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 87","town","Bedford"],["ADI case study 87","postcode sector","MK41 0"],["ADI case study 87","county","Bedfordshire"],["ADI case study 87","country","England"],["ADI case study 87","leak type","Central heating leak"],["ADI case study 87","service","Central Heating Leak Detection"],["ADI case study 87","service","Heating Leak Detection"],["ADI case study 87","engineer","Gabor Weber"],["ADI case study 87","detection method","Thermal Imaging"],["ADI case study 87","detection method","Pressure Testing"],["ADI case study 87","detection method","Acoustic Listening"],["ADI case study 87","detection method","Endoscope Camera"],["ADI case study 87","detection method","Damp Meter"],["ADI case study 87","symptom","damp living room ceiling with paintwork changing colour"],["ADI case study 87","symptom","heating system pressure at 0 bar"],["ADI case study 87","pipe material","copper"],["ADI case study 87","test result","pressure test failed after the system was drained with an air compressor"],["ADI case study 87","test result","acoustic anomaly on the bedroom floor above the damp living room ceiling"],["ADI case study 87","test result","tracer camera confirmed a wet area"],["ADI case study 87","leak location","beneath the bedroom floor"],["ADI case study 87","leak cause","nails penetrating the floorboards causing a pinhole leak in the copper pipe"],["ADI case study 87","access made","carpet and underlay lifted and floorboards cut"],["ADI case study 87","repair","damaged section of pipework replaced with new copper pipe and fittings"],["ADI case study 87","repair","two inhibitors and one length of 15mm copper pipe used"],["ADI case study 87","outcome","heating pipework passed a 2 bar pressure test for one hour after the repair"],["ADI case study 87","recommendation","send a report to the insurance company"]]},
{"id":86,"title":"central heating leak in Fareham (PO14 2)","summary":"ADI Leak Detection engineer Gabor Weber investigated a central heating leak in Fareham, Hampshire (PO14 2), using thermal imaging, tracer gas, a damp meter, pressure testing and visual inspection. Leak location: 15mm service valve beneath the TRV in the downstairs bathroom boxed pipework. Work done: faulty 15mm service valve in the downstairs bathroom replaced. Outcome: heating system held 2 bar for 2 hours after the repairs.","triples":[["ADI case study 86","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 86","town","Fareham"],["ADI case study 86","postcode sector","PO14 2"],["ADI case study 86","county","Hampshire"],["ADI case study 86","country","England"],["ADI case study 86","leak type","Central heating leak"],["ADI case study 86","service","Central Heating Leak Detection"],["ADI case study 86","service","Heating Leak Detection"],["ADI case study 86","engineer","Gabor Weber"],["ADI case study 86","detection method","Thermal Imaging"],["ADI case study 86","detection method","Tracer Gas"],["ADI case study 86","detection method","Damp Meter"],["ADI case study 86","detection method","Pressure Testing"],["ADI case study 86","detection method","Visual Inspection"],["ADI case study 86","property type","house with an extension"],["ADI case study 86","symptom","heating system losing pressure"],["ADI case study 86","test result","elevated moisture on the kitchen floor where the extension meets the main house"],["ADI case study 86","test result","strong tracer gas reading beneath the TRV in downstairs bathroom boxed pipework"],["ADI case study 86","test result","no visual evidence of a leak after opening the bedroom concrete floor"],["ADI case study 86","leak location","15mm service valve beneath the TRV in the downstairs bathroom boxed pipework"],["ADI case study 86","leak location","drain-off valve on the entrance radiator"],["ADI case study 86","leak cause","faulty 15mm service valve"],["ADI case study 86","access made","tiles and plasterboard boxing exposed"],["ADI case study 86","access made","bedroom concrete floor opened up"],["ADI case study 86","repair","faulty 15mm service valve in the downstairs bathroom replaced"],["ADI case study 86","repair","leaking drain-off valve on the entrance radiator replaced"],["ADI case study 86","outcome","heating system held 2 bar for 2 hours after the repairs"],["ADI case study 86","recommendation","power flush the system as the heating water was discoloured and dirty"]]},
{"id":84,"title":"internal cold mains leak in Oxford (OX14 4)","summary":"ADI Leak Detection engineer Gabor Weber investigated an internal cold mains leak in Oxford, Oxfordshire (OX14 4), using thermal imaging, a damp meter, tracer gas, pressure testing, acoustic correlation and visual inspection. Leak location: under the bathroom floor. Work done: leaking section of 15mm copper pipe replaced with new copper pipe and fittings. Outcome: retest at 4 bar for 20 minutes passed with no further leaks.","triples":[["ADI case study 84","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 84","town","Oxford"],["ADI case study 84","postcode sector","OX14 4"],["ADI case study 84","county","Oxfordshire"],["ADI case study 84","country","England"],["ADI case study 84","leak type","Internal cold mains leak"],["ADI case study 84","service","Water Mains Leak Detection"],["ADI case study 84","service","Internal Leak Detection"],["ADI case study 84","engineer","Gabor Weber"],["ADI case study 84","detection method","Thermal Imaging"],["ADI case study 84","detection method","Damp Meter"],["ADI case study 84","detection method","Tracer Gas"],["ADI case study 84","detection method","Pressure Testing"],["ADI case study 84","detection method","Acoustic Correlation"],["ADI case study 84","detection method","Visual Inspection"],["ADI case study 84","property type","house"],["ADI case study 84","symptom","damp on the corridor wooden floor"],["ADI case study 84","system affected","cold feed pipework"],["ADI case study 84","pipe material","copper"],["ADI case study 84","test result","high damp readings on the corridor thermal anomaly and the bathroom floor"],["ADI case study 84","test result","tracer gas in the drained heating system not detected at the damp area"],["ADI case study 84","test result","hot feed and heating system held pressure but the cold feed failed"],["ADI case study 84","leak location","under the bathroom floor"],["ADI case study 84","access made","bathroom tiles and concrete floor exposed"],["ADI case study 84","repair","leaking section of 15mm copper pipe replaced with new copper pipe and fittings"],["ADI case study 84","outcome","retest at 4 bar for 20 minutes passed with no further leaks"],["ADI case study 84","recommendation","replace the pipework, about 40 years old and now leaking for a second time"]]},
{"id":83,"title":"internal cold mains leak in Neston (SN13 8)","summary":"ADI Leak Detection engineer Gabor Weber investigated an internal cold mains leak in Neston, Wiltshire (SN13 8), using acoustic correlation, acoustic listening, a damp meter, pressure testing, an endoscope camera and visual inspection. Leak location: under the corridor floor tiles. Work done: leaking section of 15mm copper pipe replaced with copper pipe and fittings. Outcome: no further leaks on the pipework at the time of testing.","triples":[["ADI case study 83","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 83","town","Neston"],["ADI case study 83","postcode sector","SN13 8"],["ADI case study 83","county","Wiltshire"],["ADI case study 83","country","England"],["ADI case study 83","leak type","Internal cold mains leak"],["ADI case study 83","service","Water Mains Leak Detection"],["ADI case study 83","service","Internal Leak Detection"],["ADI case study 83","engineer","Gabor Weber"],["ADI case study 83","detection method","Acoustic Correlation"],["ADI case study 83","detection method","Acoustic Listening"],["ADI case study 83","detection method","Damp Meter"],["ADI case study 83","detection method","Pressure Testing"],["ADI case study 83","detection method","Endoscope Camera"],["ADI case study 83","detection method","Visual Inspection"],["ADI case study 83","property type","house"],["ADI case study 83","symptom","noise from the hot water cylinder"],["ADI case study 83","system affected","hot feed pipework"],["ADI case study 83","pipe material","copper"],["ADI case study 83","test result","pressure test on the hot feed pipework failed"],["ADI case study 83","test result","retest after the first repair failed, indicating a second leak"],["ADI case study 83","test result","final retest at 3 bar for 20 minutes passed"],["ADI case study 83","leak location","under the corridor floor tiles"],["ADI case study 83","leak location","under the bathroom floor"],["ADI case study 83","access made","corridor floor tiles and screed exposed"],["ADI case study 83","access made","bathroom floor tiles and screed exposed"],["ADI case study 83","repair","leaking section of 15mm copper pipe replaced with copper pipe and fittings"],["ADI case study 83","repair","leaking 22mm copper soldered tee section replaced with new copper pipe and fittings"],["ADI case study 83","outcome","no further leaks on the pipework at the time of testing"],["ADI case study 83","recommendation","leave the exposed floor open until it dries out"],["ADI case study 83","recommendation","fix the internal main stop cock after the water board locates the external one"]]},
{"id":82,"title":"internal cold mains leak in Lowestoft (NR32 3)","summary":"ADI Leak Detection engineer Ferenc Gulyas investigated an internal cold mains leak in Lowestoft, Suffolk (NR32 3), using visual inspection, pressure testing, tracer gas, acoustic correlation and an endoscope camera. Leak location: under the kitchen floor. Work done: leaking part replaced with Philmac fittings. Outcome: retest after the repair passed with no leak indicated.","triples":[["ADI case study 82","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 82","town","Lowestoft"],["ADI case study 82","postcode sector","NR32 3"],["ADI case study 82","county","Suffolk"],["ADI case study 82","country","England"],["ADI case study 82","leak type","Internal cold mains leak"],["ADI case study 82","service","Water Mains Leak Detection"],["ADI case study 82","service","Internal Leak Detection"],["ADI case study 82","engineer","Ferenc Gulyas"],["ADI case study 82","detection method","Visual Inspection"],["ADI case study 82","detection method","Pressure Testing"],["ADI case study 82","detection method","Tracer Gas"],["ADI case study 82","detection method","Acoustic Correlation"],["ADI case study 82","detection method","Endoscope Camera"],["ADI case study 82","symptom","high water bills without any water being used"],["ADI case study 82","system affected","internal cold water pipework"],["ADI case study 82","pipe material","MDPE"],["ADI case study 82","test result","pressure test on the internal cold water pipework indicated a leak"],["ADI case study 82","test result","tracer gas detector identified a possible leak in the middle of the kitchen"],["ADI case study 82","test result","water pressure of 50psi"],["ADI case study 82","leak location","under the kitchen floor"],["ADI case study 82","leak location","on the 25mm MDPE connection"],["ADI case study 82","access made","laminate and chipboard wood floor exposed"],["ADI case study 82","repair","leaking part replaced with Philmac fittings"],["ADI case study 82","repair","25mm to 15mm reducer, push fit coupling, 15mm copper pipework and pipe insulation fitted"],["ADI case study 82","outcome","retest after the repair passed with no leak indicated"],["ADI case study 82","recommendation","contact a claims solutions company"]]},
{"id":81,"title":"central heating leak in Chelmsford (CM11 2)","summary":"ADI Leak Detection engineer Ferenc Gulyas investigated a central heating leak in Chelmsford, Essex (CM11 2), using thermal imaging, tracer gas, a damp meter, an endoscope camera, pressure testing and acoustic listening. Leak location: hallway, in the living room doorway area. Work done: leaking part replaced with new copper pipework. Outcome: retest passed indicating no further leak.","triples":[["ADI case study 81","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 81","town","Chelmsford"],["ADI case study 81","postcode sector","CM11 2"],["ADI case study 81","county","Essex"],["ADI case study 81","country","England"],["ADI case study 81","leak type","Central heating leak"],["ADI case study 81","service","Central Heating Leak Detection"],["ADI case study 81","service","Heating Leak Detection"],["ADI case study 81","engineer","Ferenc Gulyas"],["ADI case study 81","detection method","Thermal Imaging"],["ADI case study 81","detection method","Tracer Gas"],["ADI case study 81","detection method","Damp Meter"],["ADI case study 81","detection method","Endoscope Camera"],["ADI case study 81","detection method","Pressure Testing"],["ADI case study 81","detection method","Acoustic Listening"],["ADI case study 81","symptom","heating system losing pressure twice a day"],["ADI case study 81","symptom","system pressure 2.3 bar on arrival"],["ADI case study 81","system affected","gas combi heating system with 8 radiators upstairs and 7 downstairs"],["ADI case study 81","pipe material","copper"],["ADI case study 81","test result","highest damp readings in the kitchen, another suspect spot by the soil pipe cover box"],["ADI case study 81","test result","very high tracer gas readings between the kitchen island and kitchen unit"],["ADI case study 81","test result","no leak found where the kitchen vinyl and concrete floor was exposed"],["ADI case study 81","leak location","hallway, in the living room doorway area"],["ADI case study 81","leak cause","one big crack in the 28mm copper pipework"],["ADI case study 81","access made","cupboard moved and concrete exposed"],["ADI case study 81","repair","leaking part replaced with new copper pipework"],["ADI case study 81","outcome","retest passed indicating no further leak"],["ADI case study 81","outcome","heating system restored to working order everywhere"],["ADI case study 81","recommendation","power flush, as the system is very dirty"],["ADI case study 81","recommendation","replace the heating pipework in the kitchen area, as it had turned green"]]},
{"id":80,"title":"internal cold mains leak in Hertford (SG11 1)","summary":"ADI Leak Detection engineer Ferenc Gulyas investigated an internal cold mains leak in Hertford, Hertfordshire (SG11 1), using acoustic correlation, thermal imaging, tracer gas, a damp meter, pressure testing and visual inspection. Leak location: 15mm copper pipework under the floor in front of the kitchen sink unit. Work done: leaking part replaced with new copper pipework. Outcome: retest on the hard water cold feed passed indicating no further leaks.","triples":[["ADI case study 80","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 80","town","Hertford"],["ADI case study 80","postcode sector","SG11 1"],["ADI case study 80","county","Hertfordshire"],["ADI case study 80","country","England"],["ADI case study 80","leak type","Internal cold mains leak"],["ADI case study 80","service","Water Mains Leak Detection"],["ADI case study 80","service","Internal Leak Detection"],["ADI case study 80","engineer","Ferenc Gulyas"],["ADI case study 80","detection method","Acoustic Correlation"],["ADI case study 80","detection method","Thermal Imaging"],["ADI case study 80","detection method","Tracer Gas"],["ADI case study 80","detection method","Damp Meter"],["ADI case study 80","detection method","Pressure Testing"],["ADI case study 80","detection method","Visual Inspection"],["ADI case study 80","symptom","massive water damage on the kitchen skirting next to the fridge"],["ADI case study 80","symptom","leak noise heard from the kitchen sink unit"],["ADI case study 80","symptom","heating system losing a little pressure once a week"],["ADI case study 80","system affected","hard water drinking supply pipework coming directly from the street"],["ADI case study 80","system affected","pipework feeding the fridge freezer"],["ADI case study 80","pipe material","copper"],["ADI case study 80","test result","hot feed system passed its pressure test"],["ADI case study 80","test result","internal cold feed pipework passed its pressure test"],["ADI case study 80","test result","hard water system failed its pressure test, indicating a leak"],["ADI case study 80","leak location","15mm copper pipework under the floor in front of the kitchen sink unit"],["ADI case study 80","leak location","automatic air vent in the boiler room"],["ADI case study 80","access made","bottom board of the unit next to the sink cut and concrete exposed"],["ADI case study 80","access made","tiling and concrete floor exposed in front of the kitchen sink unit"],["ADI case study 80","repair","leaking part replaced with new copper pipework"],["ADI case study 80","repair","both automatic air vents replaced with an isolation valve fitted underneath"],["ADI case study 80","repair","dripping 15mm lever ball valve on the outside tap pipework replaced"],["ADI case study 80","outcome","retest on the hard water cold feed passed indicating no further leaks"],["ADI case study 80","outcome","water pressure restored to working order everywhere"],["ADI case study 80","recommendation","contact the insurer"],["ADI case study 80","recommendation","keep using the dehumidifier to dry out"]]},
{"id":79,"title":"underground water mains leak in King's Lynn (PE30 5)","summary":"ADI Leak Detection engineer Ferenc Gulyas investigated an underground water mains leak in King's Lynn, Norfolk (PE30 5), using acoustic correlation, tracer gas, pressure testing and visual inspection. Leak location: 27mm lead pipework under paving slabs. Work done: leaking part replaced with new Philmac fittings. Outcome: retest passed indicating no further leak.","triples":[["ADI case study 79","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 79","town","King's Lynn"],["ADI case study 79","postcode sector","PE30 5"],["ADI case study 79","county","Norfolk"],["ADI case study 79","country","England"],["ADI case study 79","leak type","Underground water mains leak"],["ADI case study 79","service","Water Mains Leak Detection"],["ADI case study 79","service","Underground Leak Detection"],["ADI case study 79","engineer","Ferenc Gulyas"],["ADI case study 79","detection method","Acoustic Correlation"],["ADI case study 79","detection method","Tracer Gas"],["ADI case study 79","detection method","Pressure Testing"],["ADI case study 79","detection method","Visual Inspection"],["ADI case study 79","symptom","water leak noticed somewhere in the property or outside"],["ADI case study 79","symptom","slow movement visible on the water meter"],["ADI case study 79","system affected","external main pipework running next to the building to the back garden"],["ADI case study 79","pipe material","lead"],["ADI case study 79","test result","pressure test on the external, hot and cold pipework indicated a leak"],["ADI case study 79","test result","tracer gas detector identified the leak location in the back garden area"],["ADI case study 79","test result","water pressure measured at 3.5 bar"],["ADI case study 79","leak location","27mm lead pipework under paving slabs"],["ADI case study 79","access made","paving slabs lifted at the leak location"],["ADI case study 79","repair","leaking part replaced with new Philmac fittings"],["ADI case study 79","repair","25mm MDPE pipe used"],["ADI case study 79","outcome","retest passed indicating no further leak"],["ADI case study 79","outcome","water pressure restored to working order everywhere"]]},
{"id":78,"title":"underground water mains leak in East Dereham (NR19 1)","summary":"ADI Leak Detection engineer Ferenc Gulyas investigated an underground water mains leak in East Dereham, Norfolk (NR19 1), using pressure testing, tracer gas, acoustic correlation and visual inspection. Leak location: by the manhole concrete wall. Work done: leaking part replaced with new Philmac fittings. Outcome: retest passed indicating no further leak.","triples":[["ADI case study 78","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 78","town","East Dereham"],["ADI case study 78","postcode sector","NR19 1"],["ADI case study 78","county","Norfolk"],["ADI case study 78","country","England"],["ADI case study 78","leak type","Underground water mains leak"],["ADI case study 78","service","Water Mains Leak Detection"],["ADI case study 78","service","Underground Leak Detection"],["ADI case study 78","engineer","Ferenc Gulyas"],["ADI case study 78","detection method","Pressure Testing"],["ADI case study 78","detection method","Tracer Gas"],["ADI case study 78","detection method","Acoustic Correlation"],["ADI case study 78","detection method","Visual Inspection"],["ADI case study 78","symptom","water board reported a leak of approximately 300 litres a day"],["ADI case study 78","symptom","water board confirmed the leak was external"],["ADI case study 78","symptom","no visible evidence of the leak"],["ADI case study 78","system affected","external main pipework approximately 20m long, partly running under the extension"],["ADI case study 78","pipe material","black poly plastic"],["ADI case study 78","test result","pressure test on the external main pipework indicated a leak"],["ADI case study 78","test result","tracer gas detector identified the leak location next to the drainage manhole"],["ADI case study 78","leak location","by the manhole concrete wall"],["ADI case study 78","leak cause","cracked pipework"],["ADI case study 78","access made","driveway blocks lifted and ground dug out"],["ADI case study 78","repair","leaking part replaced with new Philmac fittings"],["ADI case study 78","repair","25mm MDPE pipe used"],["ADI case study 78","outcome","retest passed indicating no further leak"],["ADI case study 78","outcome","water pressure restored to working order everywhere"]]},
{"id":77,"title":"central heating leak in Beccles (NR34 0)","summary":"ADI Leak Detection engineer Ferenc Gulyas investigated a central heating leak in Beccles, Suffolk (NR34 0), using acoustic correlation, thermal imaging, tracer gas, a borescope, pressure testing and sectional isolation. Leak location: in the living room area. Work done: leaking part replaced with new Hep2O fittings. Outcome: retest passed indicating no further leak.","triples":[["ADI case study 77","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 77","town","Beccles"],["ADI case study 77","postcode sector","NR34 0"],["ADI case study 77","county","Suffolk"],["ADI case study 77","country","England"],["ADI case study 77","leak type","Central heating leak"],["ADI case study 77","service","Central Heating Leak Detection"],["ADI case study 77","service","Heating Leak Detection"],["ADI case study 77","engineer","Ferenc Gulyas"],["ADI case study 77","detection method","Acoustic Correlation"],["ADI case study 77","detection method","Thermal Imaging"],["ADI case study 77","detection method","Tracer Gas"],["ADI case study 77","detection method","Borescope"],["ADI case study 77","detection method","Pressure Testing"],["ADI case study 77","detection method","Sectional Isolation"],["ADI case study 77","property type","house"],["ADI case study 77","symptom","heating system losing pressure"],["ADI case study 77","symptom","no visible evidence of a leak"],["ADI case study 77","system affected","radiator pipework"],["ADI case study 77","test result","underfloor heating system passed its pressure test"],["ADI case study 77","test result","boiler tested and passed"],["ADI case study 77","test result","tracer gas detector identified a possible leak location in the corridor area"],["ADI case study 77","leak location","in the living room area"],["ADI case study 77","leak location","on a push fit fitting"],["ADI case study 77","leak cause","crack on the push fit fitting"],["ADI case study 77","access made","wooden floor exposed"],["ADI case study 77","repair","leaking part replaced with new Hep2O fittings"],["ADI case study 77","outcome","retest passed indicating no further leak"],["ADI case study 77","outcome","heating system restored to working order everywhere"]]},
{"id":76,"title":"central heating leak in Hemsby (NR12 8)","summary":"ADI Leak Detection engineer Ferenc Gulyas investigated a central heating leak in Hemsby, Norfolk (NR12 8), using thermal imaging, a damp meter, tracer gas and pressure testing. Leak location: beneath the small bedroom floor. Work done: leaking section replaced with new copper pipework and fittings. Outcome: system retest passed and tracer gas found no other leak locations.","triples":[["ADI case study 76","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 76","town","Hemsby"],["ADI case study 76","postcode sector","NR12 8"],["ADI case study 76","county","Norfolk"],["ADI case study 76","country","England"],["ADI case study 76","leak type","Central heating leak"],["ADI case study 76","service","Central Heating Leak Detection"],["ADI case study 76","service","Heating Leak Detection"],["ADI case study 76","engineer","Ferenc Gulyas"],["ADI case study 76","detection method","Thermal Imaging"],["ADI case study 76","detection method","Damp Meter"],["ADI case study 76","detection method","Tracer Gas"],["ADI case study 76","detection method","Pressure Testing"],["ADI case study 76","symptom","loss of pressure in the heating system"],["ADI case study 76","symptom","no visible evidence of a leak on arrival"],["ADI case study 76","system affected","gas combi heating system serving 11 radiators and a kitchen plinth heater"],["ADI case study 76","test result","damp areas in front of the kitchen oven and beneath the bathroom radiator"],["ADI case study 76","test result","tracer gas detector indicated a leak location in the small bedroom"],["ADI case study 76","leak location","beneath the small bedroom floor"],["ADI case study 76","leak cause","two heating pipes rubbing against each other"],["ADI case study 76","access made","carpet and concrete flooring exposed"],["ADI case study 76","repair","leaking section replaced with new copper pipework and fittings"],["ADI case study 76","outcome","system retest passed and tracer gas found no other leak locations"],["ADI case study 76","outcome","inhibitor added and heating system restored to full working order"]]},
{"id":75,"title":"hot water system leak in Norwich (NR13 4)","summary":"ADI Leak Detection engineer Ferenc Gulyas investigated a hot water system leak in Norwich, Norfolk (NR13 4), using acoustic correlation, thermal imaging, tracer gas, a damp meter, pressure testing and visual inspection. Leak location: beneath the bedroom floor. Work done: leaking part replaced with new copper fittings. Outcome: hot feed retest passed indicating no further leaks.","triples":[["ADI case study 75","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 75","town","Norwich"],["ADI case study 75","postcode sector","NR13 4"],["ADI case study 75","county","Norfolk"],["ADI case study 75","country","England"],["ADI case study 75","leak type","Hot water system leak"],["ADI case study 75","service","Hot Water Leak Detection"],["ADI case study 75","service","Internal Leak Detection"],["ADI case study 75","engineer","Ferenc Gulyas"],["ADI case study 75","detection method","Acoustic Correlation"],["ADI case study 75","detection method","Thermal Imaging"],["ADI case study 75","detection method","Tracer Gas"],["ADI case study 75","detection method","Damp Meter"],["ADI case study 75","detection method","Pressure Testing"],["ADI case study 75","detection method","Visual Inspection"],["ADI case study 75","symptom","massive water damage on the wall around the corridor and bedroom"],["ADI case study 75","symptom","concrete under the lifted bedroom carpet soaking wet"],["ADI case study 75","system affected","hot feed pipework"],["ADI case study 75","pipe material","copper"],["ADI case study 75","test result","external mains and cold feed pipework passed their pressure test"],["ADI case study 75","test result","hot feed pipework test indicated a tiny leak"],["ADI case study 75","test result","tracer gas detector identified a possible leak location in the bedroom area"],["ADI case study 75","leak location","beneath the bedroom floor"],["ADI case study 75","leak location","one leak on the 3/4 inch copper pipework under the concrete flooring"],["ADI case study 75","access made","concrete flooring exposed at the identified leak location"],["ADI case study 75","repair","leaking part replaced with new copper fittings"],["ADI case study 75","outcome","hot feed retest passed indicating no further leaks"],["ADI case study 75","outcome","water pressure restored to working order everywhere"],["ADI case study 75","recommendation","keep running the dehumidifier to ease drying out"]]},
{"id":74,"title":"internal cold mains leak in East Dereham (NR19 1)","summary":"ADI Leak Detection engineer Ferenc Gulyas investigated an internal cold mains leak in East Dereham, Norfolk (NR19 1), using thermal imaging, a damp meter, pressure testing, tracer gas and visual inspection. Leak location: 15mm copper pipework exactly under the wall. Work done: leaking parts replaced with new copper pipework. Outcome: retest passed indicating no further leak.","triples":[["ADI case study 74","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 74","town","East Dereham"],["ADI case study 74","postcode sector","NR19 1"],["ADI case study 74","county","Norfolk"],["ADI case study 74","country","England"],["ADI case study 74","leak type","Internal cold mains leak"],["ADI case study 74","service","Water Mains Leak Detection"],["ADI case study 74","service","Internal Leak Detection"],["ADI case study 74","engineer","Ferenc Gulyas"],["ADI case study 74","detection method","Thermal Imaging"],["ADI case study 74","detection method","Damp Meter"],["ADI case study 74","detection method","Pressure Testing"],["ADI case study 74","detection method","Tracer Gas"],["ADI case study 74","detection method","Visual Inspection"],["ADI case study 74","symptom","massive water damage visible on the hallway wall"],["ADI case study 74","system affected","hot water pipework"],["ADI case study 74","pipe material","copper"],["ADI case study 74","test result","very high damp readings where the pipework runs from the bathroom to the kitchen"],["ADI case study 74","test result","internal cold water pipework passed its pressure test"],["ADI case study 74","test result","hot water pipework test indicated a tiny leak somewhere along the line"],["ADI case study 74","leak location","15mm copper pipework exactly under the wall"],["ADI case study 74","leak location","just the other side of the corridor, where tracer gas gave more tiny readings"],["ADI case study 74","access made","kitchen unit removed and concrete exposed underneath"],["ADI case study 74","access made","vinyl raised up and concrete exposed"],["ADI case study 74","repair","leaking parts replaced with new copper pipework"],["ADI case study 74","outcome","retest passed indicating no further leak"],["ADI case study 74","outcome","water pressure restored to working order everywhere"]]},
{"id":73,"title":"hot water system leak in Norwich (NR10 3)","summary":"ADI Leak Detection engineer Ferenc Gulyas investigated a hot water system leak in Norwich, Norfolk (NR10 3), using a damp meter, thermal imaging, pressure testing, tracer gas and acoustic correlation. Leak location: beneath the bathroom floor. Work done: leaking part replaced with new copper pipework. Outcome: retest passed indicating no further leak.","triples":[["ADI case study 73","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 73","town","Norwich"],["ADI case study 73","postcode sector","NR10 3"],["ADI case study 73","county","Norfolk"],["ADI case study 73","country","England"],["ADI case study 73","leak type","Hot water system leak"],["ADI case study 73","service","Hot Water Leak Detection"],["ADI case study 73","service","Internal Leak Detection"],["ADI case study 73","engineer","Ferenc Gulyas"],["ADI case study 73","detection method","Damp Meter"],["ADI case study 73","detection method","Thermal Imaging"],["ADI case study 73","detection method","Pressure Testing"],["ADI case study 73","detection method","Tracer Gas"],["ADI case study 73","detection method","Acoustic Correlation"],["ADI case study 73","symptom","very large damp area in the kitchen on the wall shared with the bathroom"],["ADI case study 73","symptom","damp reaching approximately 1 metre high"],["ADI case study 73","system affected","hot feed pipework"],["ADI case study 73","pipe material","copper"],["ADI case study 73","test result","cold water pipework passed its pressure test"],["ADI case study 73","test result","pressure test on the hot feed pipework indicated a leak"],["ADI case study 73","test result","tracer gas detector identified the leak location in the bathroom area"],["ADI case study 73","leak location","beneath the bathroom floor"],["ADI case study 73","leak location","couple of very tiny leaks on the 15mm copper pipework"],["ADI case study 73","access made","concrete floor exposed in the kitchen area, then in the bathroom"],["ADI case study 73","repair","leaking part replaced with new copper pipework"],["ADI case study 73","repair","pipework insulation used"],["ADI case study 73","outcome","retest passed indicating no further leak"],["ADI case study 73","outcome","water pressure restored to working order everywhere"],["ADI case study 73","recommendation","keep running the dehumidifier"]]},
{"id":70,"title":"hot water system leak in Hythe (SO45 1)","summary":"ADI Leak Detection engineer Artur Sowa investigated a hot water system leak in Hythe, Hampshire (SO45 1), using acoustic correlation, an endoscope camera, pressure testing, visual inspection and sectional isolation. Leak location: inside the brick wall behind the kitchen kickboard. Work done: damaged hot water pipe repaired. Outcome: re-test found no further leaks.","triples":[["ADI case study 70","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 70","town","Hythe"],["ADI case study 70","postcode sector","SO45 1"],["ADI case study 70","county","Hampshire"],["ADI case study 70","country","England"],["ADI case study 70","leak type","Hot water system leak"],["ADI case study 70","service","Hot Water Leak Detection"],["ADI case study 70","service","Internal Leak Detection"],["ADI case study 70","engineer","Artur Sowa"],["ADI case study 70","detection method","Acoustic Correlation"],["ADI case study 70","detection method","Endoscope Camera"],["ADI case study 70","detection method","Pressure Testing"],["ADI case study 70","detection method","Visual Inspection"],["ADI case study 70","detection method","Sectional Isolation"],["ADI case study 70","symptom","damp walls and wet floorboards"],["ADI case study 70","system affected","hot water pipe running inside a brick wall"],["ADI case study 70","test result","meter still with the internal stop valve closed, moving again when reopened"],["ADI case study 70","test result","water dripping inside the loft storage tank, ball valve also dripping"],["ADI case study 70","test result","no leaks on the cold water pipe after the ball valve was replaced"],["ADI case study 70","leak location","inside the brick wall behind the kitchen kickboard"],["ADI case study 70","leak location","ball valve near the loft tank"],["ADI case study 70","leak cause","rat damage, including scratch marks on the pipe"],["ADI case study 70","access made","kitchen kickboard removed"],["ADI case study 70","access made","bricks removed to expose the pipework"],["ADI case study 70","repair","damaged hot water pipe repaired"],["ADI case study 70","repair","dripping ball valve replaced"],["ADI case study 70","outcome","re-test found no further leaks"]]},
{"id":69,"title":"central heating leak in Bursledon (SO31 9)","summary":"ADI Leak Detection engineer Artur Sowa investigated a central heating leak in Bursledon, Hampshire (SO31 9), using thermal imaging, tracer gas, a damp meter and pressure testing. Leak location: metal braided hose connection on the filling loop valve. Work done: filling loop valve and metal braided hose replaced with new components. Outcome: heating system pressure test passed with no further pressure drop.","triples":[["ADI case study 69","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 69","town","Bursledon"],["ADI case study 69","postcode sector","SO31 9"],["ADI case study 69","county","Hampshire"],["ADI case study 69","country","England"],["ADI case study 69","leak type","Central heating leak"],["ADI case study 69","service","Central Heating Leak Detection"],["ADI case study 69","service","Heating Leak Detection"],["ADI case study 69","engineer","Artur Sowa"],["ADI case study 69","detection method","Thermal Imaging"],["ADI case study 69","detection method","Tracer Gas"],["ADI case study 69","detection method","Damp Meter"],["ADI case study 69","detection method","Pressure Testing"],["ADI case study 69","symptom","visible dampness and damage on the flooring between the kitchen and living room"],["ADI case study 69","symptom","noticeable drop in heating system pressure over the past week"],["ADI case study 69","system affected","heating system filling loop"],["ADI case study 69","test result","strong tracer gas reading near the Megaflo cylinder"],["ADI case study 69","leak location","metal braided hose connection on the filling loop valve"],["ADI case study 69","leak location","in the vicinity of the Megaflo cylinder"],["ADI case study 69","leak cause","faulty filling loop valve"],["ADI case study 69","repair","filling loop valve and metal braided hose replaced with new components"],["ADI case study 69","repair","heating system isolated, partly drained, then refilled and bled after the new parts were fitted"],["ADI case study 69","outcome","heating system pressure test passed with no further pressure drop"]]},
{"id":68,"title":"central heating leak in Weston-super-Mare (TA9 4)","summary":"ADI Leak Detection engineer Artur Sowa investigated a central heating leak in Weston-super-Mare, Somerset (TA9 4), using acoustic correlation, thermal imaging, tracer gas and pressure testing. Leak location: first leak area near a radiator. Work done: compromised sections replaced with 15mm copper pipe and press-fit couplings. Outcome: final pressure test on the whole system showed no further pressure loss.","triples":[["ADI case study 68","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 68","town","Weston-super-Mare"],["ADI case study 68","postcode sector","TA9 4"],["ADI case study 68","county","Somerset"],["ADI case study 68","country","England"],["ADI case study 68","leak type","Central heating leak"],["ADI case study 68","service","Central Heating Leak Detection"],["ADI case study 68","service","Heating Leak Detection"],["ADI case study 68","engineer","Artur Sowa"],["ADI case study 68","detection method","Acoustic Correlation"],["ADI case study 68","detection method","Thermal Imaging"],["ADI case study 68","detection method","Tracer Gas"],["ADI case study 68","detection method","Pressure Testing"],["ADI case study 68","symptom","standing water in the living room"],["ADI case study 68","symptom","water escaping from the heating feed and expansion tank in the loft"],["ADI case study 68","system affected","heating system pipework"],["ADI case study 68","test result","internal cold pipework and external supply pipe both held pressure"],["ADI case study 68","test result","strong tracer gas reading near a radiator"],["ADI case study 68","test result","pressure still dropping after the first repair"],["ADI case study 68","leak location","first leak area near a radiator"],["ADI case study 68","access made","sections of the concrete floor removed"],["ADI case study 68","access made","further concrete removed while tracing the pipework to a second leak"],["ADI case study 68","repair","compromised sections replaced with 15mm copper pipe and press-fit couplings"],["ADI case study 68","outcome","final pressure test on the whole system showed no further pressure loss"],["ADI case study 68","recommendation","power flush the heating system due to significant sludge and debris in the pipework"]]},
{"id":66,"title":"underground water mains leak in Cricklade (SN15 2)","summary":"ADI Leak Detection engineer Artur Sowa investigated an underground water mains leak in Cricklade, Wiltshire (SN15 2), using acoustic listening, visual inspection and pressure testing. Leak location: beneath the tarmac at the front. Work done: damaged section repaired with two universal fittings and 25mm MDPE pipe. Outcome: pressure test after the repair confirmed no further leaks.","triples":[["ADI case study 66","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 66","town","Cricklade"],["ADI case study 66","postcode sector","SN15 2"],["ADI case study 66","county","Wiltshire"],["ADI case study 66","country","England"],["ADI case study 66","leak type","Underground water mains leak"],["ADI case study 66","service","Water Mains Leak Detection"],["ADI case study 66","service","Underground Leak Detection"],["ADI case study 66","engineer","Artur Sowa"],["ADI case study 66","detection method","Acoustic Listening"],["ADI case study 66","detection method","Visual Inspection"],["ADI case study 66","detection method","Pressure Testing"],["ADI case study 66","symptom","water escaping from the tarmac at the front, surrounding area significantly damp"],["ADI case study 66","system affected","25mm metal water supply pipe"],["ADI case study 66","pipe material","metal"],["ADI case study 66","test result","water appeared at the tarmac edge about three minutes after the valve was reopened"],["ADI case study 66","test result","strong sound consistent with a leak beneath the tarmac on the acoustic listening device"],["ADI case study 66","leak location","beneath the tarmac at the front"],["ADI case study 66","access made","tarmac removed and ground excavated"],["ADI case study 66","repair","damaged section repaired with two universal fittings and 25mm MDPE pipe"],["ADI case study 66","outcome","pressure test after the repair confirmed no further leaks"],["ADI case study 66","outcome","excavation backfilled and the surface reinstated"],["ADI case study 66","recommendation","contact the insurance provider, as trace and access cover often applies"],["ADI case study 66","recommendation","no further works currently recommended"]]},
{"id":59,"title":"swimming pool leak in Dunstable (AL5 2)","summary":"ADI Leak Detection engineer Adam Regan investigated a swimming pool leak in Dunstable, Hertfordshire (AL5 2), using acoustic listening, acoustic correlation, leak dye, pressure testing and a ground microphone. Leak location: body of the outlet in the skimmer pot section. Work done: semi permanent repair to the skimmer crack with epoxy resin putty. Outcome: skimmer epoxy repair should last years, depending on outside factors.","triples":[["ADI case study 59","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 59","town","Dunstable"],["ADI case study 59","postcode sector","AL5 2"],["ADI case study 59","county","Hertfordshire"],["ADI case study 59","country","England"],["ADI case study 59","leak type","Swimming pool leak"],["ADI case study 59","service","Swimming Pool Leak Detection"],["ADI case study 59","engineer","Adam Regan"],["ADI case study 59","detection method","Acoustic Listening"],["ADI case study 59","detection method","Acoustic Correlation"],["ADI case study 59","detection method","Leak Dye"],["ADI case study 59","detection method","Pressure Testing"],["ADI case study 59","detection method","Ground Microphone"],["ADI case study 59","symptom","pool level dropping more when the pool is running"],["ADI case study 59","system affected","skimmer pipe"],["ADI case study 59","test result","dye drawn into a crack in the body of the outlet"],["ADI case study 59","test result","skimmer pipe failed pressure test, still dropping slower with the bung past the crack"],["ADI case study 59","test result","pipework under tension and about 1 inch out of place"],["ADI case study 59","leak location","body of the outlet in the skimmer pot section"],["ADI case study 59","leak location","filtration room connection where pool fittings convert to mains fitting"],["ADI case study 59","leak cause","crack in the body of the skimmer outlet"],["ADI case study 59","leak cause","cracked glued top section of the connection"],["ADI case study 59","repair","semi permanent repair to the skimmer crack with epoxy resin putty"],["ADI case study 59","repair","new PVC-U fittings, female threaded to female glued socket and elbow"],["ADI case study 59","outcome","skimmer epoxy repair should last years, depending on outside factors"],["ADI case study 59","recommendation","monitor the pool, as the returns test could have covered up cracks"],["ADI case study 59","recommendation","if needed, expose the skimmer pot and move the outlet to the other one"],["ADI case study 59","recommendation","apply more epoxy resin putty to the skimmer pot repair if further works are needed"]]},
{"id":58,"title":"swimming pool leak in Bracknell (SL4 1)","summary":"ADI Leak Detection engineer Adam Regan investigated a swimming pool leak in Bracknell, Berkshire (SL4 1), using acoustic listening, tracer gas, pressure testing, leak dye and visual inspection. Leak location: T fitting connected directly to the skimmer pot. Work done: leaking section of skimmer pipe removed. Outcome: no observable water loss overnight with the pool left at skimmer level.","triples":[["ADI case study 58","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 58","town","Bracknell"],["ADI case study 58","postcode sector","SL4 1"],["ADI case study 58","county","Berkshire"],["ADI case study 58","country","England"],["ADI case study 58","leak type","Swimming pool leak"],["ADI case study 58","service","Swimming Pool Leak Detection"],["ADI case study 58","engineer","Adam Regan"],["ADI case study 58","detection method","Acoustic Listening"],["ADI case study 58","detection method","Tracer Gas"],["ADI case study 58","detection method","Pressure Testing"],["ADI case study 58","detection method","Leak Dye"],["ADI case study 58","detection method","Visual Inspection"],["ADI case study 58","property type","school swimming pool"],["ADI case study 58","system affected","skimmer pipework"],["ADI case study 58","system affected","valves on the two return runs in the filtration room"],["ADI case study 58","test result","skimmer pipework failed to hold pressure, as on the previous visit"],["ADI case study 58","test result","pipework back to the plant room and the second skimmer held pressure"],["ADI case study 58","test result","shrew holes in the skimmer frame drawing in dye"],["ADI case study 58","leak location","T fitting connected directly to the skimmer pot"],["ADI case study 58","leak location","shrew holes in the skimmer frame"],["ADI case study 58","leak cause","pipe brittle over time, break likely caused by ground movement"],["ADI case study 58","leak cause","crack at the glued end of a valve on the returns"],["ADI case study 58","access made","tiles beside the skimmer removed and ground excavated to pipework approximately 800mm down"],["ADI case study 58","access made","hole extended both sides of the skimmer pot surround, soil removed by hand"],["ADI case study 58","repair","leaking section of skimmer pipe removed"],["ADI case study 58","repair","shrew holes plugged with epoxy sealant"],["ADI case study 58","repair","two return valves cut out and replaced with new"],["ADI case study 58","outcome","no observable water loss overnight with the pool left at skimmer level"],["ADI case study 58","outcome","semi permanent epoxy repair on the suction pipe stopped the leak on the day"],["ADI case study 58","recommendation","replace both skimmer pots and the brittle skimmer pipework in the near future"],["ADI case study 58","recommendation","monitor the pool"]]},
{"id":56,"title":"swimming pool leak in Beaconsfield (HP9 2)","summary":"ADI Leak Detection engineer Adam Regan investigated a swimming pool leak in Beaconsfield, Buckinghamshire (HP9 2), using acoustic listening, pressure testing, leak dye and visual inspection. Leak location: just underneath the concrete on the sump pipework. Work done: hydrostatic valve removed underwater and replaced with new. Outcome: repiped section tested and the filtration system put back together and working.","triples":[["ADI case study 56","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 56","town","Beaconsfield"],["ADI case study 56","postcode sector","HP9 2"],["ADI case study 56","county","Buckinghamshire"],["ADI case study 56","country","England"],["ADI case study 56","leak type","Swimming pool leak"],["ADI case study 56","service","Swimming Pool Leak Detection"],["ADI case study 56","engineer","Adam Regan"],["ADI case study 56","detection method","Acoustic Listening"],["ADI case study 56","detection method","Pressure Testing"],["ADI case study 56","detection method","Leak Dye"],["ADI case study 56","detection method","Visual Inspection"],["ADI case study 56","symptom","a lot of air getting into the pool pump"],["ADI case study 56","system affected","sump pipework in the filtration room"],["ADI case study 56","test result","pressure test on the sump pipework showed a crack just underneath the concrete"],["ADI case study 56","test result","no anomalies on the hydrophone after the new hydrostatic valve was fitted"],["ADI case study 56","test result","no dye seen being drawn in after the valve repair"],["ADI case study 56","leak location","just underneath the concrete on the sump pipework"],["ADI case study 56","leak cause","crack in the sump pipework"],["ADI case study 56","leak cause","suction pump connection letting by, allowing air into the pump"],["ADI case study 56","access made","concrete broken back to expose the sump pipe"],["ADI case study 56","repair","hydrostatic valve removed underwater and replaced with new"],["ADI case study 56","repair","cracked pipe section cut out, repiped and left to set for 1 hour"],["ADI case study 56","repair","suction pump connection removed and resealed with PTFE tape and sealant"],["ADI case study 56","outcome","repiped section tested and the filtration system put back together and working"],["ADI case study 56","outcome","no more air seen at the pool returns after running in recirculation"],["ADI case study 56","recommendation","allow time for trapped air in the unvented filter to clear back to the pool"]]},
{"id":49,"title":"underground water mains leak in Chesterfield (S41 8)","summary":"ADI Leak Detection engineer Brett Steele investigated an underground water mains leak in Chesterfield, Derbyshire (S41 8), using acoustic correlation, acoustic listening, tracer gas, pressure testing and flow metering. Leak location: beneath the courtyard tarmac patch. Work done: damaged lead supply capped off with a transition coupler and 25mm cap end. Outcome: pressure retest showed no further loss.","triples":[["ADI case study 49","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 49","town","Chesterfield"],["ADI case study 49","postcode sector","S41 8"],["ADI case study 49","county","Derbyshire"],["ADI case study 49","country","England"],["ADI case study 49","leak type","Underground water mains leak"],["ADI case study 49","service","Water Mains Leak Detection"],["ADI case study 49","service","Underground Leak Detection"],["ADI case study 49","engineer","Brett Steele"],["ADI case study 49","detection method","Acoustic Correlation"],["ADI case study 49","detection method","Acoustic Listening"],["ADI case study 49","detection method","Tracer Gas"],["ADI case study 49","detection method","Pressure Testing"],["ADI case study 49","detection method","Flow Metering"],["ADI case study 49","symptom","local water authority detected high water consumption"],["ADI case study 49","system affected","lead mains running across the courtyard to the gents toilet"],["ADI case study 49","system affected","what appeared to be a dead leg on the lead supply"],["ADI case study 49","pipe material","lead"],["ADI case study 49","test result","uncontrolled usage of 1 litre in 30 seconds at the meter with no known demand"],["ADI case study 49","test result","high tracer gas levels emitting from a tarmac patch in the middle of the courtyard"],["ADI case study 49","test result","acoustic profiling raised a concern around the tarmac patch"],["ADI case study 49","leak location","beneath the courtyard tarmac patch"],["ADI case study 49","leak cause","damaged lead supply pipe"],["ADI case study 49","access made","excavation at the courtyard tarmac patch"],["ADI case study 49","repair","damaged lead supply capped off with a transition coupler and 25mm cap end"],["ADI case study 49","outcome","pressure retest showed no further loss"],["ADI case study 49","outcome","no further usage recorded with the mains supply reinstated"],["ADI case study 49","recommendation","if further leaks appear, repipe the gents from within the cellar"]]},
{"id":47,"title":"hot water system leak in Kingston upon Hull (HU9 3)","summary":"ADI Leak Detection engineer Brett Steele investigated a hot water system leak in Kingston upon Hull, East Riding of Yorkshire (HU9 3), using acoustic correlation, thermal imaging, tracer gas, a damp meter, pressure testing and flow metering. Leak location: compression elbow beneath the sink unit. Work done: both leak sections removed and the hot supply re-piped. Outcome: pressure test proved no further issues on the hot supply.","triples":[["ADI case study 47","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 47","town","Kingston upon Hull"],["ADI case study 47","postcode sector","HU9 3"],["ADI case study 47","county","East Riding of Yorkshire"],["ADI case study 47","country","England"],["ADI case study 47","leak type","Hot water system leak"],["ADI case study 47","service","Hot Water Leak Detection"],["ADI case study 47","service","Internal Leak Detection"],["ADI case study 47","engineer","Brett Steele"],["ADI case study 47","detection method","Acoustic Correlation"],["ADI case study 47","detection method","Thermal Imaging"],["ADI case study 47","detection method","Tracer Gas"],["ADI case study 47","detection method","Damp Meter"],["ADI case study 47","detection method","Pressure Testing"],["ADI case study 47","detection method","Flow Metering"],["ADI case study 47","symptom","constant usage showing on the internal water meter"],["ADI case study 47","symptom","all usage stopped when the cold feed to the combi was isolated"],["ADI case study 47","symptom","heating had stopped working"],["ADI case study 47","system affected","hot water pipe running under the screed floor"],["ADI case study 47","pipe material","copper"],["ADI case study 47","test result","usage of 1 litre in 20 seconds recorded on the meter"],["ADI case study 47","test result","thermal imaging showed a suspect heat pattern below the sink unit"],["ADI case study 47","test result","step testing proved an additional leak further down the line"],["ADI case study 47","leak location","compression elbow beneath the sink unit"],["ADI case study 47","leak location","unprotected copper pipe further along the same line"],["ADI case study 47","leak cause","pin hole in unprotected copper pipe"],["ADI case study 47","access made","flooring lifted and screed excavated around the area of concern"],["ADI case study 47","access made","bottom of the sink unit cut out"],["ADI case study 47","repair","both leak sections removed and the hot supply re-piped"],["ADI case study 47","repair","flexible push fit pipe and fittings used"],["ADI case study 47","outcome","pressure test proved no further issues on the hot supply"],["ADI case study 47","outcome","no usage recorded on the meter"],["ADI case study 47","recommendation","full drying procedure before any making good works"],["ADI case study 47","recommendation","leave the repair under the kitchen unit accessible at all times"],["ADI case study 47","recommendation","removable hatch in the click flooring to keep the fittings below accessible"]]},
{"id":46,"title":"underground water mains leak in Swadlincote (DE11 7)","summary":"ADI Leak Detection engineer Brett Steele investigated an underground water mains leak in Swadlincote, Derbyshire (DE11 7), using acoustic correlation, tracer gas, pressure testing and flow metering. Leak location: below the tarmac patch covering a historical repair. Work done: damaged lead pipe cut back and a new transition coupler installed. Outcome: retest at 4 bar with tracer gas showed no pressure loss or uncontrolled meter activity.","triples":[["ADI case study 46","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 46","town","Swadlincote"],["ADI case study 46","postcode sector","DE11 7"],["ADI case study 46","county","Derbyshire"],["ADI case study 46","country","England"],["ADI case study 46","leak type","Underground water mains leak"],["ADI case study 46","service","Water Mains Leak Detection"],["ADI case study 46","service","Underground Leak Detection"],["ADI case study 46","engineer","Brett Steele"],["ADI case study 46","detection method","Acoustic Correlation"],["ADI case study 46","detection method","Tracer Gas"],["ADI case study 46","detection method","Pressure Testing"],["ADI case study 46","detection method","Flow Metering"],["ADI case study 46","symptom","suspected leak causing high water consumption"],["ADI case study 46","symptom","further leak feared on the external supply, a previous leak already repaired"],["ADI case study 46","system affected","original lead supply pipe"],["ADI case study 46","pipe material","lead"],["ADI case study 46","test result","usage of one litre every 90 seconds, unchanged with internal supplies isolated"],["ADI case study 46","test result","instant pressure loss on a tracer gas test at three bar"],["ADI case study 46","test result","high gas readings around a tarmac patch covering a historical repair"],["ADI case study 46","leak location","below the tarmac patch covering a historical repair"],["ADI case study 46","leak location","two transition couplers where a connection to the original lead supply had failed"],["ADI case study 46","leak cause","significant deterioration of the lead pipe at the connection point"],["ADI case study 46","access made","excavation to expose the transition couplers"],["ADI case study 46","repair","damaged lead pipe cut back and a new transition coupler installed"],["ADI case study 46","outcome","retest at 4 bar with tracer gas showed no pressure loss or uncontrolled meter activity"],["ADI case study 46","outcome","repair patch backfilled"],["ADI case study 46","recommendation","new tarmac covering required over the repair patch"],["ADI case study 46","recommendation","replace the whole lead supply if additional leaks occur"]]},
{"id":45,"title":"central heating leak in Longridge (PR3 2)","summary":"ADI Leak Detection engineer Brett Steele investigated a central heating leak in Longridge, Lancashire (PR3 2), using acoustic correlation, thermal imaging, tracer gas, a damp meter, an endoscope camera and pressure testing. Leak location: behind the tall kitchen unit and plasterboard, on the UFH primary flow and return. Work done: defective section repaired using two new 22 mm push-fit elbows with pipe inserts. Outcome: tracer gas pressure test at 2 bar recorded no pressure loss.","triples":[["ADI case study 45","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 45","town","Longridge"],["ADI case study 45","postcode sector","PR3 2"],["ADI case study 45","county","Lancashire"],["ADI case study 45","country","England"],["ADI case study 45","leak type","Central heating leak"],["ADI case study 45","service","Central Heating Leak Detection"],["ADI case study 45","service","Heating Leak Detection"],["ADI case study 45","engineer","Brett Steele"],["ADI case study 45","detection method","Acoustic Correlation"],["ADI case study 45","detection method","Thermal Imaging"],["ADI case study 45","detection method","Tracer Gas"],["ADI case study 45","detection method","Damp Meter"],["ADI case study 45","detection method","Endoscope Camera"],["ADI case study 45","detection method","Pressure Testing"],["ADI case study 45","property type","large semi-detached house with a kitchen extension to the rear"],["ADI case study 45","symptom","constant pressure loss on the heating system"],["ADI case study 45","symptom","no obvious signs of water damage"],["ADI case study 45","system affected","UFH primary flow and return pipework"],["ADI case study 45","test result","high moisture readings at low level around the doorway from the kitchen extension"],["ADI case study 45","test result","suspect leak noise on the UFH primary flow and return feeds"],["ADI case study 45","test result","elevated tracer gas readings and a constant drip behind the studwork"],["ADI case study 45","leak location","behind the tall kitchen unit and plasterboard, on the UFH primary flow and return"],["ADI case study 45","leak cause","failed 22 mm push-fit connection with no pipe insert fitted in the joint"],["ADI case study 45","access made","skirting board removed and an access hole made in the studwork"],["ADI case study 45","access made","tall kitchen unit and additional plasterboard removed"],["ADI case study 45","repair","defective section repaired using two new 22 mm push-fit elbows with pipe inserts"],["ADI case study 45","outcome","tracer gas pressure test at 2 bar recorded no pressure loss"],["ADI case study 45","recommendation","leave the access area open so it can fully dry out"],["ADI case study 45","recommendation","further monitoring of the heating system during the drying period"]]},
{"id":44,"title":"internal cold mains leak in Sheffield (S17 4)","summary":"ADI Leak Detection engineer Brett Steele investigated an internal cold mains leak in Sheffield, South Yorkshire (S17 4), using acoustic correlation, thermal imaging, tracer gas, an endoscope camera, pressure testing and flow metering. Work done: leak point cut out and supply capped off. Outcome: tracer gas pressure retest at 6 bar recorded no loss.","triples":[["ADI case study 44","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 44","town","Sheffield"],["ADI case study 44","postcode sector","S17 4"],["ADI case study 44","county","South Yorkshire"],["ADI case study 44","country","England"],["ADI case study 44","leak type","Internal cold mains leak"],["ADI case study 44","service","Water Mains Leak Detection"],["ADI case study 44","service","Internal Leak Detection"],["ADI case study 44","engineer","Brett Steele"],["ADI case study 44","detection method","Acoustic Correlation"],["ADI case study 44","detection method","Thermal Imaging"],["ADI case study 44","detection method","Tracer Gas"],["ADI case study 44","detection method","Endoscope Camera"],["ADI case study 44","detection method","Pressure Testing"],["ADI case study 44","detection method","Flow Metering"],["ADI case study 44","symptom","suspected supply leak causing high water consumption"],["ADI case study 44","symptom","spike in utility bills"],["ADI case study 44","symptom","leak noise on a 15mm copper pipe behind wall tiles that feeds upstairs"],["ADI case study 44","system affected","old feed that had been capped off further down the line"],["ADI case study 44","pipe material","copper"],["ADI case study 44","test result","meter recorded uncontrolled usage of 1 litre over 1 minute 20 seconds"],["ADI case study 44","test result","greatest suspect leak noise on the cold feed to upstairs"],["ADI case study 44","test result","high tracer gas readings around the floor where the cold feed rises upstairs"],["ADI case study 44","leak cause","pin hole that had emerged in the copper pipe"],["ADI case study 44","access made","section of floor tiles removed around the high gas readings"],["ADI case study 44","access made","additional excavations made to expose the leak"],["ADI case study 44","repair","leak point cut out and supply capped off"],["ADI case study 44","repair","push fit coupler and 15 mm soldered cap end used"],["ADI case study 44","outcome","tracer gas pressure retest at 6 bar recorded no loss"],["ADI case study 44","outcome","no further uncontrolled usage found at this time"],["ADI case study 44","recommendation","dry out the foundations before any remedial works to make good"]]},
{"id":29,"title":"toilet cistern leak in Ipswich (IP3)","summary":"ADI Leak Detection engineer Ferenc Gulyas investigated a toilet cistern leak in Ipswich, Suffolk (IP3). Leak location: main bathroom toilet. Outcome: toilet left isolated, customer to arrange the repair independently.","triples":[["ADI case study 29","is a","leak detection job carried out by ADI Leak Detection"],["ADI case study 29","town","Ipswich"],["ADI case study 29","postcode district","IP3"],["ADI case study 29","county","Suffolk"],["ADI case study 29","country","England"],["ADI case study 29","leak type","Toilet cistern leak"],["ADI case study 29","customer type","Homeowner"],["ADI case study 29","engineer","Ferenc Gulyas"],["ADI case study 29","job date","3 April 2026"],["ADI case study 29","property type","downstairs flat with two bathrooms and a kitchen"],["ADI case study 29","symptom","water authority warned of a suspected leak within the flat"],["ADI case study 29","test result","hot and cold feed pipework each held 40psi for one hour and passed"],["ADI case study 29","test result","endoscope camera found no further issues in concealed areas"],["ADI case study 29","leak location","main bathroom toilet"],["ADI case study 29","leak cause","flushing valve continuously letting water run from the cistern into the pan"],["ADI case study 29","outcome","toilet left isolated, customer to arrange the repair independently"]]}
]}