Water drainage is refers to the bath, wash basin and other drainage device. According to the type can be divided into jumping into the water and cover water, etc. According to the material can be divided into the copper in the water, the stainless steel water, plastic water and so on. According to use can be divided into the bath water, wash basin water, etc.
Launching device choice: this depends on whether the basin that wash a face has overflow outlet, if there is should choose to contain open water. If there is no should choose open water.
