What is the size of the sewer pipe?

1. The diameter of the riser for drainage in the house should not be less than 75mm, that is, the diameter of the sewer for drainage is 75mm.

2. The diameter of the drainage branch pipe connected with the washbasin, washbasin, bathtub and sanitary basin is 32 mm, and the sewer pipe with a diameter of 40 mm can be used for larger specifications.

Water pipes are water supply pipes, and modern decoration water pipes are all buried in the wall. There are three types of water pipes.

The first category is metal pipes, such as hot-dip cast iron pipes lined with plastic, copper pipes and stainless steel pipes.

The second category is plastic-coated metal pipes, such as plastic-coated steel pipes and aluminum-plastic composite pipes.

The third category is plastic pipes, such as PB and PP-R.