Kitchen ceiling stain that was not the bath
The property
An older brick house near the centre, its bathroom added at the back above the kitchen. The hot pipe to the bath runs under the bathroom floorboards.
The problem
A brown mark on the kitchen ceiling kept growing. Two reseals of the bath had not helped, and it stayed damp even when nobody had bathed for days.
How we found it
The wettest plaster lay away from the bath, and shutting off the hot water halted the meter. With hot water running, the thermal camera picked out a warm spot under one board.
The outcome
A single floorboard was lifted at the mark, the joint mended on the visit at a separate price, and the bath seal left alone.