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Anonymous users2024-01-24Not the main line.
Floor drain. It is installed on a vertical sewer pipe, which is connected to a horizontal sewer pipe (with a slope), and the horizontal sewer pipe is connected to the main line (main sewer pipe).
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Anonymous users2024-01-23Bathroom floor drain. Not the main route for sewerage. But it is connected to the main line.
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Anonymous users2024-01-22You just have to look up at the pipeline upstairs to see where it's going. The direction of the building's sewer lines is the same. Generally, the floor drain in the bathroom leads to the main sewer through a horizontal line of one to two meters.
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Anonymous users2024-01-21The floor of the bathroom is generally not a main pipe.
All floor drains of civil air defense must be explosion-proof floor drains.
1. Use a cutting machine to open a small opening in the gap of the floor tiles, only the seam of the blade can be used, and cut from the stagnant water to the floor drain, high in front and low in the back. >>>More
No, because there may be highly corrosive substances and may pollute the water body, because most of the water in the sewer pipes is discharged directly into the river...
Yes. In that case (high speed and low pressure) the waste is broken down into very fine particles, which is why the toilets are locked when the train is about to arrive.
The backwater is mainly caused by the blockage of the pipeline, which should be combed by professionals, or because of the high water level of the outdoor well on the bottom floor and poor drainage.