How did they work out they had a leak? Were they just looking at the meter when they saw it going round?
Logically a fault on the metre would occur continuously wouldn't it? Since you can make it run with one valve rather than another there must be a leak. If you can't see it that doesn't mean it's not there. You must have failed to check something. Painstaking, lengthy search needed. Is all pipework surface? Surely some must be hidden.
They saw the meter was working (they were having a new kitchen moved and fitted anyway) even when no 2 valve to the granny flat was isolated, I put in a new valve no 3 and no 2 valve (they just had a ballfix valve fitted) and ran new pipe to the bathroom
1, the pipe is exposed, but at some point it will be behind plaster board
2, I open valve no 1 and have both valves 2 and 3 open, meter runs, close valve 2, meter still runs, close valve 2, open valve 3, meter runs, close valve 3 meter stops, open valve 3, taps shut, BV in WC closed, meter runs, tissue round every joint dry, now no puddles, no damp patches, all pipe visible
How much of a search can I do ? it has gone on for some time now, I have put in new pipe, now logic tells me if there is a leak, there will be some kind of a sign, but there isnt anything