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  • Writer's pictureRob Byrne

Sump Pump vs Injector Pump

A sub pump and an injector pump serve different purposes.



1. Sump Pump:

  • A sump pump is primarily used to remove excess water that accumulates in a basement or low-lying area of a building.

  • It is typically installed in a sump put or basin dug into the ground, which collects water from sources like rainwater, groundwater, or flooding.

  • When the water level in the pit reaches a certain point, the sump pump activates to pump water out and away from the building to prevent flooding.

2. Injector Pump (Ejector Pump):

  • An injector pump, also known as an ejector pump,is used for pumped sewage or wastewater from a building’s plumbing system to a septic tank or municipal sewer system.

  • It is commonly found in home that have a basement bathroom or laundry room below the level of the main sewer line.

  • Injector pumps work by creating a vacuum or suction effect to lift wastewater from a lower point (e.g., a basement) to a higher point (e.g., a sewer line).


In summary , the main difference is in their intended use: a sump pump is for removing water from low-lying areas to prevent flooding, while an injector pump is for moving sewage or wastewater from lower levels a building to a higher-level sewer line or septic system.


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