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That's definitely your own repair! Repair it yourself! ~
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If you don't have a property, you have to do everything yourself.
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It could be that the pipe is ruptured, and in this case, it is more troublesome.
Upstairs is in charge, he didn't do a good job of waterproofing when he renovated. >>>More
It is another time to put waterproof glue on the floor tile joints. The symptom is not the root cause. To be long-lasting. It has to be dug up and redone. >>>More
This situation may only be an authoritative explanation for you by an industry insider, and someone else can believe it. So it's best to check with your original renovation staff.
Toilet floor leakage, must be bad for the building, this is during the construction, did not do a good job of waterproofing, to find someone to repair it, or call the property to repair.
Find a property, collude with the upstairs to deal with it, and make a waterproof.