I live on the second floor of the toilet on the third floor leaking around the pipe, the old buildin

"The premise is that after 5 days of waterproofing, the waterproofing of the floor drain has not been dry (the third floor has not used water).", water pipe testing is not?

At least it's certain that the waterproofing is not done well, send some photos up, and I'll help you take a look.

The sewer pipe has always been a very critical position to do ground waterproofing, and it should be done at least 2 times more than other parts, and if the old cast iron pipe is rusty, it is best to deal with it first to do waterproofing (the cast iron water pipe will be embroidered badly over time, and the gap between the pipe and the floor slab is getting bigger and bigger).

It doesn't matter if you can find the leak point or not, if you do make a waterproof layer, the premise is that the waterproof layer must be of good quality, intact and undamaged, and the waterproof effect can be achieved. What material is your waterproof made of, leaking at 7 o'clock and 8 o'clock every day, it is obvious that it is caused by water in the morning, and you have now made a waterproof layer and is still leaking, which can only mean that your waterproof layer does not fully cover your waterproof parts, and it may also be that the waterproof material is inferior and has been damaged, and it cannot meet the requirements of the waterproof parts you need now. If you have any questions, continue to ask, we are a professional manufacturer of waterproof slurry, and we hope to help you.

Option 1: Replace cast iron pipes with fire pipes or PVC pipes; Scheme 2: special water pipe quick-drying cement.

Buy two packets of salt and flush them down from the upstairs basin or toilet bowl with a small amount of water.