Standard S trap rimflush wc pan, mounted on tiled concrete floor.
The level of the (trap) water in the pan fills to normal after flushing but immediately drops significantly. The system has worked normally for years before this problem.
There is no sign of leakage and the outlet fits into a socket cast into a concrete floor. There is no sign of movement.
Any ideas welcome?
The level of the (trap) water in the pan fills to normal after flushing but immediately drops significantly. The system has worked normally for years before this problem.
There is no sign of leakage and the outlet fits into a socket cast into a concrete floor. There is no sign of movement.
Any ideas welcome?