How to design the toilet drainage?

When designing a house, a home decoration designer should first consider the feasibility of house decoration, and then make a simple decoration layout. Regarding the layout of the toilet drainage pipe, there are generally the following forms:

1) traditional drainage branch pipe arrangement. This arrangement connects the upper drainage pipe with the horizontal drainage pipe under the lower roof, which is simple to install and convenient to maintain. The disadvantage is that once the pipeline leaks, it will affect the normal life of lower-level users and bring inconvenience to users. However, this arrangement is still widely used as the main arrangement form.

2) Sinking arrangement. This is a new arrangement in recent years. The floor and water supply and drainage branch pipes of the bathroom sink are located in the sink to prevent the leakage of the floor or pipes of the upper bathroom from affecting the normal life of the lower residents.

After the water supply pipeline is installed, the water pressure test shall be carried out in strict accordance with GB5024222002 Code for Acceptance of Construction Quality of Building Water Supply, Drainage and Heating Engineering. If the impermeability and leakage of the pipeline and its joints are checked, the pressure drop is qualified within the allowable range. At this time, the toilet floor construction can be carried out.

Bian Xiao reminded that according to the knowledge of toilet safety, irrigation test must be done before the horizontal drainage pipe is installed concealed, and there is no leakage in the pipe and interface. In the construction of other types of work, attention should be paid to protecting the pipeline from damage.