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Anonymous users2024-01-24I can only find the original construction person. Find its store or company, or call the police, if you can't find someone, this is definitely your own downstairs renovation costs.
After the bathroom is waterproofed, it needs to be thoroughly dried, so that it can do the closed water test, you can contact the residents downstairs in advance, so that the leakage can be informed in time to avoid unnecessary losses of the downstairs residents When doing the closed water test, the depth of water storage can not be less than 20 cm, and the time can not be less than 72 hours, and the water level does not fall is qualified.
There is no strict requirement for the height of the water test, cover the mouth of the sewer pipe, and it is almost two centimeters above the ground. Keep it for 24 hours, and see that the top surface of the downstairs is not leaky. ，
Do waterproofing needs to be done on the surface of the water, dig excellent permeability crystalline waterproofing, you can do it yourself on the cement surface with a super permeable waterproof guard (if there are cracks and potholes on the cement surface, fill the complete with metin porcelain glue and then do waterproofing). >>>More
It doesn't need to be dry, and you can pay attention to protecting the waterproof layer when backfilling
Who does the waterproofing, who has to test the water, this is the necessary construction process, the water test is not required to pay extra, and if there is a problem in the future, they must be responsible!