What is the diameter of the sewer pipe of the sink?

If it is a drainage branch pipe connecting washbasin, sink, bathtub and sanitary basin, the pipe diameter is generally 32mm, and 40mm pipe is also acceptable. If it is a drainage branch pipe connecting urinals, the diameter is generally 50 mm, if it is a sewer main pipe, the diameter is generally 75 mm, and if it is a drainage pipe connecting toilets, the diameter is generally 50 mm.

Matters needing attention in installation of toilet sewer pipe

1, the toilet water pipe basically passes through the ceiling, which can reduce the possibility of man-made damage. The joint of hot and cold water pipes should be parallel to the water outlet. Usually, the heating pipe is on the left, which is cold. The pipe is on the right. In the design, all pipelines should be avoided and removed from the circuit as much as possible. The position and inclination of the pipe clamp must also meet the requirements. Each valve must be installed smoothly for future use and maintenance.

2. When installing hot and cold water pipes, pay attention to distinguish the positions of water inlet and water outlet of water heater. Connect the valves and pipes at the water inlet to the bathtub at the water outlet. After installation, open the valve to determine whether there is water leakage. If this happens, please install faucets and shower heads in the bathroom.

3, the bathroom is the darkest place in the whole family, and it is also the most prone to water accumulation. Therefore, ventilation is particularly important. It would be better if the bathroom could be designed with a window. Without this condition, in order to prevent the bathroom from getting moldy and damp, a warm exhaust fan can be installed. Many people like to wrap the toilet water pipe, which will lead to the moisture being wrapped in the water pipe and unable to disperse, thus aggravating the moisture in the bathroom.