Sewage Ejector Pump: What It Is and How It Works
A sewage ejector pump is a type of wastewater pump designed to move sewage and other heavily contaminated water from locations below the level of a sewer line. When gravity drainage won’t work—such as basements, below-grade bathrooms, or pits—an ejector pump helps route waste to a main drain or septic system.
Unlike clean-water pumps, sewage ejector pumps are built to handle solid waste and higher concentrations of organic matter. Many models use a grinder or macerating system to reduce particle size, helping prevent clogs.
How a sewage ejector pump works
Most sewage ejector systems include a sealed sump or tank, a pump, and a set of controls (often a float switch). As wastewater collects in the tank, the pump is triggered once the liquid reaches a certain level. The pump then pushes the waste through a discharge pipe—usually into a higher drain ... Read more »
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