1. The water pipe at the bottom of the vegetable basin adopts PVC drainage pipe, which has a reverse water bend and does not return to odor. The water pipe under the vegetable basin can use PVC50 drainage pipe to ensure the rapid discharge of sewage. Leakage, the PVC pipe under the kitchen sink has a longer service life, all pipes under the kitchen sink are sealed, and a cavity is formed directly up and down, thereby reducing the chance of pipe blockage.
2. At the time of purchase, the kitchen plumbing specifications are 75 and 90, which is an outer diameter of dn, so it cannot correspond to that score. Generally speaking, a few minutes and a few inches are directly related to the welded steel pipe, mainly because when the welded steel pipe is processed, the processing thread in the pipe is an inch thread. Then there is the concept of a few minutes and a few inches. The PVC-U sewer pipe is pasted, so there is no such thing as a few minutes and a few inches.
3. If the unit size is not clear at the time of purchase, it is likely that the installation of the kitchen sewer pipe is not smooth. For example, a PVC-U pipe with an outer diameter of 90 mm is called a 90-degree PVC pipe. If the PVC-U pipe is connected with the cast iron drain pipe, the corresponding drain pipe specification is DN75. In technical exchanges, it is inappropriate to call a PVC-U pipe with a nominal outer diameter of dn90 mm as 75.