Ejector Pump

Published: April 6, 2017 | Last updated: July 5, 2023

What Does Ejector Pump Mean?

An ejector pump is a pump that ejects waste water from a lower level where gravity cannot do the job. Ejector pumps are used for below-ground installations like basements, bathrooms, etc., and are connected to the main sewer line. These pumps can be used for ejecting sewer water or collected waste water where old sewer pipes are being replaced or new pipes are being laid using trenchless technology.


Trenchlesspedia Explains Ejector Pump

Ejector pumps collect waste water from floor drains, like those from washing machines, and below-ground bathrooms. They are installed on the floor in a basin with a sealed lid and a vent to release the harmful gasses emitted from the waste water. The pump is connected to the main sewage line to which the other waste water pipes from installations above ground are connected. Since the waste water cannot directly empty into the sewer line as it is on a lower level where gravity cannot act, ejector pumps are used to help drain it out.


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