Hi, No, no other overflow or water source above above this spot. It's roughly inline with the toilet waste pipe so may it is a leak there when toilet is flushed? We've stopped using it to see if damp recides. thanks
Hi, A damp area has appeared on an exterior wall directly behind a toilet fixture. No damp on the interior wall or toilet. Please see image. Could it be a leak on the waste from the toilet? Or a leak on the mains pipe on the toilet file? Grateful for any help. thanks