The floor drain is a sanitary device that removes indoor floor water. Its main task is to remove indoor floor water and prevent harmful gases in the drainage system from entering the room. People have three basic requirements for it: First, it has a certain drainage capacity. Second, have a certain depth of water seal, that is, more than 5 cm. Third, it has a certain ability to pass through pollution and self-cleaning.
However, the floor drain has two special features: ① It excludes ground water, and the water quality is sometimes worse than that of any other appliance. There are many solid and fibrous materials, which are easy to deposit in the trap; ② The two adjacent drainage The time distance is longer than that of other appliances, so that the sediment is accumulated and cannot be cleared by the next drainage. Therefore, there is generally no water trap for floor drain drainage, and a water seal structure is made in the floor drain product itself to facilitate the removal of deposits. The water body of the water trap at the floor drain can easily form a new source of odor because of the deposition and blackening. It is recommended to publicize the necessity of water seal water rotation to users to ensure the freshness and disinfection of the water seal water. Avoid mosquito breeding.

1. Drainage capacity is the minimum requirement for floor leakage, because it is originally an appliance used to remove ground wastewater. The necessity of floor drain installation is also reflected in its use as an emergency leakage port after the water burst pipe or faucet fails to seal, so as to avoid the expansion of flood losses after the burst water pipe or faucet fails to seal.
Common sense of installation and use: the floor drain grating should be slightly lower than the ground. The floor must be sloped and sloping towards the floor drain. When it is difficult to sweep the water with a broom to the floor drain, it is too late to regret. The place where the water accumulation is not often generated should not install the floor drain. The location where the floor drain is designed should avoid the location where kitchen and bathroom equipment may be installed, and it is forbidden to move through the board during the decoration and only install the water seal and deodorant floor drain.
Because there are only two ways to move: one is to lay pipes on the rough floor. According to the current drainage pipe diameter Z is the smallest 50 type. To level the ground, it is necessary to lay an extra layer of concrete with a thickness of 7 cm. If you also want to ensure that the floor leak seal is qualified, that is, more than 5 cm.
The second is to chisel the slats to the downstairs to change, but the waterproofing must be redone. The problem is that the downstairs is not your property right or the ceiling has been decorated, and it is often difficult to implement. This is also the reason why the current water trap with inspection port cannot perform its function when it is blocked.
2. The depth of the water seal, which you may not understand very well. First of all, we need to understand what a water seal is? It refers to the vertical interval between the water surface of the water trap in the floor drain and the lower port of the water seal. Regarding this vertical interval or the depth of the water seal, the national water supply and drainage mandatory delineation: the depth of the water seal of the water trap and the floor drain must not be less. at 50mm.

https://www.chinabathroomfittings.com/