What is the meaning of the toilet row?
Straight row refers to the floor of the hole, the pipe directly to the lower level of drainage, horizontal is the same layer of drainage, as the name suggests, is to raise the ground, the drainage pipe in the original ground to go to the main sewage pipe, , Because the front row related to the issue of property rights, my house depends on your house to leave your pipe, leakage also leak my home, huh, huh, but the horizontal maintenance of trouble, you can use the whole bathroom to solve
