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Anonymous users2024-01-23This accessory is called a double-linked oblique tee This one is one, the place you are referring to is not a gap, but a trace of the mold, it doesn't matter, that one is a tight seam.
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Anonymous users2024-01-22If there is a gap, there will indeed be leakage, but the amount of water is not large, and the water pressure is not large.
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Anonymous users2024-01-21As long as it is a water pipe, there should be no gaps, it will leak.
There are a lot of such houses, and if the developer wants to let it pass, he will do everything he can.
Radical treatment method: chisel the old "floor drain and sewer pipe between the upper mouth and the floor slab", connect the interface between the floor drain and the sewer pipe, and then use 1:1 cement mortar and 15% of the cement content of the alum stone expansion agent to make up, you can. >>>More
It's too unprofessional to repair it like this.
Black cement does not have strong adhesion even if glue is added, and if this is effective, our walls will not crack and peel and pulverize. >>>More
Hello: It is called a closed water test, also called a water storage test, and it is necessary to fill it with water, and the water must have a sufficient volume. The water storage depth of the water storage test should not be less than 20mm, the water storage height is generally 30-100mm, the water storage time is 24 hours, and the water surface has no obvious drop to be qualified. >>>More
Because the photo is too small and pasty, it is even more mushy when I zoom in, so I can only guess: the three short thick pipes seem to be drainage pipes.