2. Brush the joints. Problems are most likely to occur at the joints between the bathroom wall and the ground, and between the water pipe and the ground. These edges and corners must be well supervised, and the amount of corners must be in place, not less.
3. build a waterproof layer. The Technical Specification for Lightweight Partition Walls in Buildings (JGJ/T 157—2008) stipulates that a concrete platform with a height of 200mm must be poured on the structural surface to prevent the toilet from leaking outwards.
4. After these waterproof treatments, related waterproof effect tests must be done. Finally, drainage depends on whether all sewer pipes in the bathroom, including floor drain and sanitary ware sewer pipes, are unblocked. In this way, the whole waterproof project is completed.