Shop water bill jumps, with nothing wet in sight
The property
A town centre shop with a let flat above. One old pipe from the pavement meter feeds both, running under the shop's solid floor.
The problem
The shop's water bill had jumped, though nothing downstairs or in the flat looked wet, and the tenant upstairs had noticed nothing odd.
How we found it
With both stop taps closed, the meter kept going, so the leak had to be on the length they share. Swept across the shop floor, the ground microphone was loudest just inside the front wall, and tracer gas surfaced there too.
The outcome
The spot was marked and photographed. Booking for a shop, the landlord paid in advance and received the report; the repair, through one small patch of floor, was quoted separately.