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Anonymous users2024-01-24The most troublesome thing is the waterproofing problem. The ground needs to be chiseled, the water pipes need to be replaced, and in the worst case, the entire ground needs to be chiseled, waterproof and redone, and the waterproof glue can only be kept for a few months, and the glue is still useless when it is aged.
Directly use two-component glue for repair, such as AB glue, agricultural machinery glue, stone glue and so on.
Upstairs said well, it is best to find a mechanical cutting of concrete, the time is fast, and the damage to the floor slab is small. But I'm wondering how to open such a big hole, and there are no other reinforcement measures for the floor slab?
Find the property to coordinate and solve. It should be upstairs responsible for compensation.
Theoretically, it is a bit difficult to design a commercial house with only a single floor, and it is very convenient to build a house from itself, and all the drainage pipes above the second floor will eventually converge to the largest drainage pipe, and then only set up a water storage bay between the largest drainage pipe and the sewer.
It can be used when it is blocked, and it is generally used at the bend of the pipe or when the pipe is particularly long. Unscrew it and use a tool to pass it through. Generally, it is not necessary.