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1. All of them will inevitably have peculiar smells, and the sewage pipes will smell bad due to the influence of wind direction.
Regulations on the sewer pipe of the toilet sewage pipe Generally, the middle wall of the sewage pipe mouth is 400-450mm on one side and 600-650mm on the other side (at the water tank or flush valve). Depending on the size of the bathroom, the size can be adjusted. The size of the sewer hole of the squatting pit from the wall depends on whether the water comes out of the front or the back. >>>More
It will affect the discharge, and it is still very affecting.
1.If the material of the sewage pipe is PVC, it is best to buy an elbow like it and replace it. >>>More
It's good to erect a backwater bend to prevent the smell from being reversed.
To remove the dirt from the toilet drain, you can choose to use toilet cleaner and 84 disinfectant, but since it has a certain corrosion of iron, you must rinse it several times. >>>More