We have a water tank in the loft. Don't go in the loft more than about once a year. Was up last week, faint sound of running water. Ballcock failure.
Perhaps check for something similar?
Also toilets. They can dribble water down the back of the pan 24 hours a day without you noticing, cos the internals wear out. Bit of paper on the back of the pan ten mins after flushing, see what happens.
Been there done that one too.
Last edited by: Crankcase on Sat 19 Mar 22 at 07:43
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