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The walls inside the toilet are leaking.
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There is a pipe rupture and water seepage....
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The water pipe is poured outward.
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There must be a leak there.
Now this problem is easy to solve, there is a special device to expand this wireless WIFI, you can plug in wherever you go, you can also buy more than one to expand. Look at this setup, dozens of dollars a piece.
The toilet is selected with a reverse bend to prevent odor transfer; The kitchen sink can be equipped with a trap to prevent odor transfer. Of course, the premise is that you live permanently, otherwise after the water in the trap dries up, it will not play a role in preventing the smell of the skewer.
This is between your home and the first floor, excluding the sewer on the first floor, the flow of water is not smooth, there is a blockage, the large flow of the toilet, resulting in blockage and regurgitation, just find a professional master to get through, really help you look forward to adopting,
Sewers are public assets, not yours. So it's illegal. Is the whole building your house? >>>More
Is it cured now? I have this problem too, pain!