Wet front lawn that was not the owner's leak
The property
A house on one of Tring's newer streets, with the meter in a chamber at the edge of the front garden and a plastic supply pipe beyond it.
The problem
A soggy strip appeared along the front lawn near the pavement. The owners feared a leak on their own pipe and a dug-up garden.
How we found it
The dial on the meter never moved while every tap was shut, which ruled out their own pipe. Our ground microphone then found a hiss on the road side of the chamber, loudest beneath the pavement.
The outcome
The readings and photographs pointed to a leak before the meter, outside the boundary. The owners sent our report to their supplier, and their garden stayed untouched.