Most villa basements are equipped with villa-type sewage lift pumps. Currently, to increase usable space, many real estate companies also design basements in ordinary residential buildings. Therefore, it would be more appropriate to call them "household sewage lift pumps" or "domestic sewage lift pumps" rather than "villa sewage lift pumps."

Initially, basement drainage in China involved designing a cement or brick sump pit in the basement. Wastewater from toilets, bathrooms, and sinks was discharged into the sump pit through pipes on the same level. Two submersible pumps were installed in the pit, which is commonly referred to as the "one pit, two pumps" underground sewage drainage method. The dual pumps alternated to ensure drainage reliability. However, the biggest drawbacks of this method were the need for regular cleaning and the issue of foul odors. Basements typically lack windows, making it impossible to eliminate odors, which rendered the space unusable. Additionally, regular cleaning was a critical flaw of this drainage method. Later, with the introduction of sewage lift pumps from abroad, the "one pit, two pumps" method was gradually replaced. The key features of these villa-type sewage lift pumps are odor-free operation and no need for cleaning. However, due to their small capacity, the frequent starting of the pump posed reliability challenges. Most sewage lift pumps operate by placing a single-phase pump in a small container, controlled by an air pressure switch. Wastewater from toilets, sinks, showers, and other sources flows into the sewage lift pump tank, and the pump then lifts the sewage outdoors.

Shanghai Erxi Environmental Technology Co., Ltd. is a manufacturing and research-oriented enterprise dedicated to submersible series products such as sewage and wastewater submersible pumps, drainage pumps, as well as non-negative pressure, pressure stabilization, and booster integrated water supply equipment, sewage lift devices, booster pumps, and vertical multistage pumps. Its independently developed and produced Exlift-type fully automatic basement sewage discharge equipment fundamentally addresses the drawbacks of traditional basement drainage methods, such as environmental odor issues, pump clogging and damage, and difficulties in cleaning.

It is widely applicable for the lifting and discharge of sewage in various underground buildings.

Applicable Conditions: 1) Lifting of ordinary domestic sewage and wastewater. For newly constructed buildings, construction debris in the sewage pipes must be cleared before use. 2) The pH range of sewage and wastewater should be between 4 and 10. 3) The temperature of sewage and wastewater should not exceed 40°C. 4) For oily wastewater from restaurants and kitchens, as well as wastewater containing hair from bathrooms, oil separation and hair removal treatment are required before use. Principle Introduction: The fully automatic basement sewage discharge equipment mainly consists of a collection (sewage) tank, lift pump, auxiliary drainage pump, control cabinet, and corresponding filters, pipes, valves, etc. The control cabinet is programmed for control, enabling fully automatic operation without the need for personnel on duty. Lift pumps 1 and 2 serve as backups for each other and operate in rotation. If the equipment malfunctions, the alarm system will automatically activate, with indicator lights flashing and an audible alarm to alert值班 personnel.