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The sewer pipe itself is 110 mm, and with the elbow, the toilet bowl has to be padded quite a lot in the later stage. It's better not to share, so many tubes are on the same plane, it will definitely clog. If it can be directly opened in the floor slab to re-route the pipe, it is most stable, and it can also be used as a water-bearing bend, and there is no risk of backwater.
Be careful, it won't affect, this is the case in my family.
Find the property committee, the property committee, and the street office to coordinate the upstairs repairs, and it is best to have a written explanation or recording when coordinating with the upstairs, if he does not repair it, the court will sue him, and let him compensate you for the renovation costs, lost work costs, litigation costs, etc.
There is no harm, this is a tide bug. Scientific name rat woman. I just like wet places.
There's nothing wrong with that, can you manage the pattern of your own home, and can you manage other people's homes. Unrealistic.
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