A wastewater lift station is a pump in a basin designed to move wastewater, or sewage, from a lower to a higher elevation. These pump stations are used to move wastewater from residential and commercial facilities to their destination at either a wastewater treatment plant or a septic tank.
Lift stations go by many different names. All of these names actually mean different kinds of pumps, but they all fall under the main category of sewage pumps.
A lift station, or pump station, consists of several mechanical components that will need to be monitored for efficiency, repair, or failure.
There are two commonly used types in wastewater operations, a dry well (also referred to as a dry pit) and a wet well. A dry pit configuration is separated into two “sections” within the pit. The wet section is used to collect the wastewater. The dry section contains the pumps, controls, and equipment inside the same basin. An E/One is a good example of a submersible pump inside a dry well or dry pit.
The wet well also has a submersible sewage pump, and it is the most common implementation. A submersible solids-handling pump is used inside the wet well. It is designed to operate underwater. All system components are installed within the wet well above the pump.
Both of these systems will have a separate control panel and alarm system outside the basin. Both wet wells and dry wells can house 1-2 pumps depending on the design needed for the household.