The Necessity Of Building Sewage Elevator

Building a bathroom in the basement of a building is a common situation in architectural design. At this time, no matter how much toilet sanitary ware is set up in the toilet, there are usually two ways: one method is to set up a puddle under the basement ground, collect the sewage of sanitary ware together, and lift it to the outdoor underground sewage pump well with submersible sewage pump; Another method is to discharge the sewage from the toilet into the outdoor underground sewage pump well, and use the submersible sewage pump to lift the sewage inspection well near the pump well.

The first method has three drawbacks: first, there are feces and other solid substances in sewage, long-term not clean up, easy to cause blockage; Second, the operation of the submersible pump that starts and stops according to the water level is not reliable because of the shallow catchment hole. Third, the water collection hole is not airtight, smell, sanitation is not good. The second method is to build pump Wells outdoors, which is deeper, more expensive and inconvenient to manage. In addition, the toilets in the building will be misaligned, so that the toilet is far away from the drainage riser, but the drainage riser cannot be suspended under the floor. At this time, the common method is to strengthen the floor cushion, bury the drainage branch pipe in the cushion and drain it from the top of the floor to the drainage riser at a certain slope. The thickness of the cushion is thick, sometimes up to 350 ~ 400mm, which brings difficulties to the use of the toilet and the layout of the building.