Is there any way to remedy the secondary drainage in the bathroom?

The remedy for not doing secondary drainage in the bathroom is to open the drainage riser in the bathroom. On the original waterproof surface of the bathroom (the waterproof layer originally made by the construction unit can't be destroyed), the problem can be solved by opening a φ25 hole in the drainage riser of the bathroom.

Theoretically, the water in the toilet will be discharged through the floor drain, but in fact, no one can make part of the water seep from the floor tile to the sink (the toilet is filled with ceramsite). The bottom of the sink is waterproof, but if there is no secondary drainage, the water level will become higher day by day.

The pressure at the bottom of the box increased, and the originally watertight bottom began to seep downstairs. There is still no water leakage at the bottom of the box downstairs, but the water level is getting higher and higher, and after crossing the threshold of the bathroom, it begins to slowly penetrate into the walls of each room. The wall was moldy. I thought there was something wrong with the water pipe. I informed the construction team to repair it. I detected that the water pipe was under pressure, but everything was normal.

Extended data:

The secondary drainage of toilet is introduced as follows:

After the sink is filled with water, the water will spread around the house along the wall, and if the home is equipped with solid wood floors, the floors will also suffer. In both cases, if there is a secondary drain at the bottom of the box, when the water level exceeds the height of the secondary drain, it will be discharged from the secondary drain.

It will not leak from the original watertight floor and box bottom because of the pressure increase, or make the water level rise out of the bathroom and soak in the walls of each room. Smooth the bottom with cement mortar; Waterproofing should be done before backfilling ceramsite, and then filling ceramsite after waterproofing; Leveling with cement mortar;

People's network-completely solve the odor in the bathroom and return your healthy environment.

I'll give another 200 yuan to the teacher who makes the secondary drain pipe for the bathroom.