Greener strip across the lawn of an older semi
The property
A semi-detached house from between the wars, with a long front lawn, the meter in the pavement and its original metal supply pipe.
The problem
Upstairs taps had lost pressure and a strip of lawn stayed greener than the rest, then a letter warned of continuous use at the meter.
How we found it
The meter kept moving after the indoor stop tap was shut, so the leak was outside. The ground microphone peaked halfway along the lawn; tracer gas rose there too.
The outcome
Digging at the mark uncovered a cracked length of old pipe. We fitted a new section while we were there, priced separately from the detection.