Bathroom problems, please find out where the investigation is! Wait for it online! Seek help!

If you don't go to the scene to see the situation, it is difficult to analyze the cause.

Advice for you:

1.When the water is leaking, go upstairs and look down to see if the house is using water, or if they have used water within an hour of the leak (there is also a situation where the water does not leak to the downstairs house until a day or two after the water is used).

This situation belongs to the fact that the waterproofing of the ground upstairs is not done well and needs to be redone.

2.If there is no water on the ground in the last few days when the house has been using water, then there is only one reason, a crack in the interface of the groundwater pipe in the floor slab (very likely) or a crack in the wall of the water pipe (less likely). In this case, it is necessary to replace the water pipe, which is more troublesome.

3.Waterproofing can only be done on the surface layer, you are useless to do on the top of your home, under normal circumstances, the price of a square meter of waterproof company is 80 yuan, if you are looking for someone by yourself, forty or fifty yuan a square, of course, there must be a difference in the waterproof coating used.

4. Waterproof coating can be done locally, it is best to use the same type of paint to prevent problems with different chemical compositions of different models, and it is best to redo them all.

I didn't go to the scene to see, I'm not sure what the reason is, but there are a few possibilities:

1. Do your water pipes go to the roof? If there is, check for water leaks.

2. The waterproofing of the upstairs ground is not done, 3. The wall waterproofing of the upstairs shower room is not done, 4. The upstairs strong embedded water pipe leakage, 5. The waterproof of the shower room floor drain is not strict, as long as it is upstairs leakage, it must be waterproofed from the upstairs ground, and it is useless to do it from the top of your house.

As long as you find the leakage, you can do partial waterproofing, and expand the new waterproof layer to cover the original waterproof layer.

The floor drain can be replaced separately, if it is only to replace the floor drain core, it is not necessary to re-do the waterproofing, if it is the overall replacement of the floor drain, it is necessary to do the local waterproofing next to the floor drain.

First of all, it is impossible to make waterproofing in the roof of your house. Gotta go upstairs to do it. Since you suspect that it is a leak near the abandoned floor drain, you should do the waterproofing there first, and then see the after-effect.

When doing it, be sure to clean the vicinity of the floor drain to the original waterproof surface, and wipe it as clean as possible. Then use SBS cold glue and non-woven fabric or glass fiber cloth to make three oil and two cloth waterproof.

If there is a problem with the floor drain, it is best to block the floor drain and do not change it. Waterproof after blocking. In general, there are no sewer pipes upstairs, and the pipes are all on your roof.

This question is basically hard!

Find someone to do this! You don't know how to do it yourself in your own turf, and outsiders may have a hard time judging!

Partial knock-out to do waterproofing is basically meaningless.