Drainage laying method of sunken toilet

The drainage mode of sunken toilet is also called caisson drainage mode on the same floor. Sinking toilet drainage has many advantages, but the disadvantages can be ignored or the probability of failure is very low. The premise is that the property is already in the same drainage layout, so it is difficult and costly to change it yourself.

Drainage mode of caisson toilet on the same floor:

When the structural plate of the toilet sinks more than 350mm, the sanitary ware drain pipe should be laid in the caisson (i.e. the structural plate) and then discharged to the sewage riser. After the pipeline laying is completed, caisson should be backfilled with light building materials (fly ash, ceramsite concrete, cinder, etc.). ) to the building elevation, and at the same time, connect the side drainage pipe buried in the backfill layer of caisson to the sewage drainage pipe. In this way, the toilet drainage pipes are all on the structural board and have no connection with the lower-level residents.

Sinking toilets generally have 350MM drip boards, and drainage pipes should be constructed after the waterproof layer of drip boards is completed. The drain pipe on the waterproof layer should be fixed with cement pier, and the slope should be guaranteed. After the completion of the drainage pipe, the height is generally 30-50MM away from the waterproof layer, and then the slag is backfilled, and then the waterproof layer and protective layer are made.

When decorating drainage pipes, we know that this is mainly achieved by pressure and air pressure difference. Therefore, Bian Xiao suggested that you must carry out inhibition test when decorating the bathroom. Many families didn't pay attention to the suppression test when decorating, so there was water leakage later. Therefore, in the knowledge of toilet safety, when decorating at home, it is especially necessary to tell the decoration master to carry out suppression tests, especially the pipes transformed into walls.