The toilet is waterproof. Why is it leaking?
Closed water test, the national standard requirements are required to do two times, once in waterproof brushing, complete waterproof coating after drying; the second is waterproof protective cushion, or finish after the completion of the coating process.
The cause or construction is not standardized.Waterproof done, if there is no standard to do closed water test, will eventually lead to leakage.
If it is only the first closed water test, then in the subsequent protection cushion or paving the wall tile, may cause damage to water.
