The correct way to do secondary drainage in the bathroom is divided into five steps: one cloth pipe; two do the sewer outlet; three leveling; four do the waterproof layer; five follow-up construction.

1, according to the needs of their own families and house type to the cloth pipe

In the cloth pipe should also pay attention to, can not destroy the developer's original waterproof layer, cloth pipe is to build a simple framework.

Of course, one of the key is not to destroy the developer's original waterproof layer, but when we do the secondary drainage, the ground needs to be leveled, and after leveling, we have to do the waterproof layer. So, the waterproof layer on the ground if destroyed, personally I think it is not too big a problem.

2, do the secondary drainage outlet

Generally in the main drain next to the secondary drainage of water along the main drain.

3, leveling

Here "flat" is not the level of "flat", in order to facilitate the smooth flow of water into the secondary drainage hole, the ground floor of the sinking layer to do a slope!

4, do waterproof layer

If the waterproof layer of the sinking layer is damaged, then you need to re-do the waterproof layer. After leveling, a waterproof layer on the plane of finding, waterproof layer after the waterproof layer is done for water closure test, water closure test can be qualified.

5, follow-up construction steps

Back basically not too much of a problem, we have to do some lattice, used to support the bathroom floor, some families will use ceramic backfill, there is also a direct overhead practice, both methods are available, and then finally waterproofing construction of the bathroom floor.

Because the waterproof layer of the bathroom floor, does not ensure that it must be able to completely prevent water. Once the waterproof layer of the bathroom floor leakage, then these leaks will flow into the sinking layer, if the sinking layer does not do the secondary drainage.

Then these leaks will keep accumulating, easy to breed bacteria, affecting the environment of the bathroom for a long time. It may leak downstairs, and may even affect the architectural structure of the bathroom. After doing the secondary drainage, you can drain this accumulated water in time to reduce the impact caused by leakage.