Why Was The Sewage Elevator Born

A bathroom in the basement of a building is a common occurrence in the design process. 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.

Why did the sewage elevator come into being?

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 catchment pit 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 drain riser, but the drain riser cannot be suspended under the floor. At this time, the commonly used method is to strengthen the floor cushion, bury the drain branch pipe in the cushion and discharge it from above the floor to the drain riser at a certain slope. The thickness of the cushion is thicker, sometimes up to 350-400mm, which brings difficulties to the use of the toilet and the layout of the building. In this, with the function of self-lifting drainage toilet and automatic sewage elevator is thus produced.