# ADI Leak Detection case studies: central heating leaks

51 jobs carried out by ADI Leak Detection engineers, taken from ADI's own job records and written as semantic triples, most recently added first. Each job has a heading, a short summary and triples in the form subject | predicate | object. What each predicate means is explained at https://leakdetectionbirmingham.com/case-studies.md

## ADI Leak Detection case study 332: 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.

- 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

## ADI Leak Detection case study 330: 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.

- 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

## ADI Leak Detection case study 327: 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.

- 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

## ADI Leak Detection case study 322: 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.

- 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

## ADI Leak Detection case study 318: 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.

- 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

## ADI Leak Detection case study 316: 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.

- 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

## ADI Leak Detection case study 314: 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.

- 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

## ADI Leak Detection case study 313: 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.

- 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

## ADI Leak Detection case study 305: 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.

- 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

## ADI Leak Detection case study 302: 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.

- 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

## ADI Leak Detection case study 294: 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.

- 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

## ADI Leak Detection case study 293: 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.

- 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

## ADI Leak Detection case study 290: 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.

- 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

## ADI Leak Detection case study 283: 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.

- 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

## ADI Leak Detection case study 280: 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.

- 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

## ADI Leak Detection case study 274: 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.

- 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

## ADI Leak Detection case study 270: 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.

- 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

## ADI Leak Detection case study 269: 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.

- 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

## ADI Leak Detection case study 258: 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.

- 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

## ADI Leak Detection case study 254: 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.

- 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

## ADI Leak Detection case study 251: 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.

- 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

## ADI Leak Detection case study 246: 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.

- 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

## ADI Leak Detection case study 238: 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.

- 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

## ADI Leak Detection case study 224: 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.

- 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

## ADI Leak Detection case study 222: 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.

- 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

## ADI Leak Detection case study 212: 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.

- 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

## ADI Leak Detection case study 209: 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.

- 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

## ADI Leak Detection case study 204: 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.

- 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

## ADI Leak Detection case study 203: 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.

- 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

## ADI Leak Detection case study 202: 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.

- 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

## ADI Leak Detection case study 196: 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.

- 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

## ADI Leak Detection case study 195: 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.

- 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

## ADI Leak Detection case study 194: 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.

- 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

## ADI Leak Detection case study 193: 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.

- 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

## ADI Leak Detection case study 188: 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.

- 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

## ADI Leak Detection case study 176: 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.

- 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

## ADI Leak Detection case study 174: 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.

- 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

## ADI Leak Detection case study 148: 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.

- 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

## ADI Leak Detection case study 141: 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.

- 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

## ADI Leak Detection case study 117: 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.

- 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

## ADI Leak Detection case study 108: 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.

- 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

## ADI Leak Detection case study 99: 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.

- 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

## ADI Leak Detection case study 98: 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.

- 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

## ADI Leak Detection case study 87: 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.

- 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

## ADI Leak Detection case study 86: 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.

- 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

## ADI Leak Detection case study 81: 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.

- 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

## ADI Leak Detection case study 77: 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.

- 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

## ADI Leak Detection case study 76: 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.

- 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

## ADI Leak Detection case study 69: 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.

- 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

## ADI Leak Detection case study 68: 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.

- 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

## ADI Leak Detection case study 45: 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.

- 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