In the design of civil residence, the kitchen of considerable part, toilet does not set floor drain. Some are the requirements of the construction unit, and some are the designers’ own ideas. The reasons are summed up to three:
(1) floor drain sends out odor to the room;
(2) the joint of floor drain and floor is easy to leak, increasing the maintenance workload;
(3) The installation of floor drain increases the cost of the project.
In fact, the way that kitchen, toilet does not set floor drain is undesirable. Although it looks like floor drain is small, but its important role in People’s Daily life cannot be ignored. Whether the floor drain of kitchen and toilet is set or not will directly affect people’s comfortable life, and sometimes even make people’s normal life seriously disturbed.