A quiet leak under a long gravel drive
The property
A detached older house set back from the road, with a gravel drive, the meter at the roadside and a blue plastic supply pipe.
The problem
The water company wrote about continuous use, yet nothing was damp. The owner had dug where the pipe enters the house and found dry sand.
How we found it
The meter moved with the stop tap shut. The plastic pipe was too quiet to hear, so tracer gas found the leak in the gravel. Listening right above it then caught a faint hiss.
The outcome
The point was marked halfway up the drive and photographed. The owner attached our report to a leak allowance request to the water company.