Only recently I've noticed a quiet dripping noise that comes from within the wall cavity, quite soon after opening a hot tap. It doesn't begin straight away, maybe after 20 secs or so, and then continues every 2 secs or so for at least 20 mins before it tapers off, getting more infrequent and quieter.
It doesn't sound like expansion, more like dripping on a soft surface. It doesn't either seem to be the waste - the basin is on the ground floor and the waste goes straight out.
A job for a plumber/leak specialist, or should I stop worrying? The wall in question is in the kitchen corner, with units, cupboards, worktops... I really don't want to entertain the idea of exposing the cavity to fix any pipes!!
It doesn't sound like expansion, more like dripping on a soft surface. It doesn't either seem to be the waste - the basin is on the ground floor and the waste goes straight out.
A job for a plumber/leak specialist, or should I stop worrying? The wall in question is in the kitchen corner, with units, cupboards, worktops... I really don't want to entertain the idea of exposing the cavity to fix any pipes!!