Old supply pipe rising under the kitchen units
The property
A 1960s semi on a concrete ground floor, its original supply pipe coming up through the floor to a stop tap under the sink.
The problem
Anglian Water's letter reported constant use. Under the sink there was a musty smell and a swelling plinth, but no water to be seen.
How we found it
Closing the stop tap did nothing to the meter, so the fault had to be on the pipe before it. The ground microphone was loudest where the pipe enters the floor; tracer gas confirmed it.
The outcome
The plinth came off and a small hole was opened at the mark. We explained the choice between mending that spot and running in a new pipe, and quoted both.