What is the matter with the toilet that can t hold water without leaking after it is waterproof

I don't know if you described that you can't store water when you do the closed water test, but there is no leakage, the most common reason is that the floor drain is not closed well when doing the closed water test, resulting in water loss and water level drop. The following is the standard practice for closed water testing, you can refer to the comparison:

1. After the waterproof construction is completed, you can do the closed water test after the waterproof layer is completely dry;

2. Temporarily block the floor drain and the perimeter of the pipeline mouth;

3. Build a 20CM high retaining wall at the door;

4. Start to store water, with a depth of 5-20 cm, and mark the water level;

5. Water storage time 48 72 hours;

6. After the water is closed on the first day, see if the water level has dropped significantly, if so, please check whether there is leakage around the roof and pipes downstairs in time, if not, continue to close the water;

7. On the third day, the water is closed, and the downstairs ceiling and roof pipes are fully inspected.

8. Carry out the next process after being fully qualified.

Wait until the waterproof layer is completely dry before you can do a closed water test;

2. Temporarily block the floor drain and the perimeter of the pipeline mouth;

3. Build a 20CM high retaining wall at the door;

4. Start to store water, with a depth of 5-20 cm, and mark the water level;

5. Water storage time 48 72 hours;

6. After the water is closed on the first day, see if the water level has dropped significantly, if so, please check whether there is leakage around the roof and pipes downstairs in time, if not, continue to close the water;

Although it is called waterproof, it is mainly platoon-based.

It may be that the waterproofing is not done well, and you can use the digyou black gold steel waterproof guard to do waterproofing.