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Generally, there are two sewer pipes on the upper floors
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Generally, one is a drain pipe and the other is an exhaust pipe.
Normal, universal tubes, used on so many floors.
On the right is the toilet pipe, and the other is the floor drain pipe.
If this manure pipe is sawed off by you, aren't you afraid that there will be no place for biogas to be discharged, causing manure explosion?! This must not be sawn!
That pipe seems to be a sewage pipe for toilet excrement, not a water pipe. If there is a leak, you can ask someone to check it, and the property management should be responsible. Generally, when decorating, there will be an opening on the outside of the pipe to facilitate inspection and dredging. >>>More
It is a pipe that discharges the sewage from each toilet into the septic tank.