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What's so bad about this, neighbors, if his upstairs leaks, he also looks for it. If he is unreasonable, you will find the property to solve it.
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You go and talk to him first, understand his personality, and then find a suitable way to talk.
That's the upstairs waterproofing is not done, find the property to deal with.
If our water supply and sewer pipes seepage, who will belong to the loss of pipeline decoration and the cost of repairing the pipeline? >>>More
If you don't change the pipe, you might as well change the squatting without a trap.
There is water in the pipes, which is not your home, the pipes are all connected, passing by your place.
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.