Outside tap branch leaking inside a back wall
The property
A semi on the newer streets, with an outside tap on the back wall fed by a short branch through the wall from the kitchen.
The problem
The water company wrote about constant use, though the outside tap was never left on. Paint low on the kitchen wall had begun to bubble.
How we found it
The meter stopped when the kitchen stop tap was closed, and again when only the outside tap's valve was shut. Listening placed a hiss low in the wall; tracer gas confirmed it.
The outcome
One small opening at the mark reached a push-fit joint that had worked loose, remade during the visit at a price agreed first.