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Sump Pumps – Part 1

It seems like when it comes to sump pumps, there are a lot of questions. So let’s start with the basic definition of a sump pump.

A sump pump removes water and is typically installed in a basement or crawl space. Water is collected in a sump basin, where the sump pump is housed. As a result, the water drains into the basin via a basement waterproofing drainage system, groundwater or flooding.

Common Sump Pump Terminology

Sump basin:

A sump basin is a plastic or metal container that is installed into the ground and protects the sump pump. In addition, the basin size varies depending upon the type of sump pump installed. Because every home is different, the size of the sump pump also needs to vary in order to work the most efficiently for that home.

sump pumps

Pump impeller:

The pump impeller is a component of the motor that is responsible for moving the water into the pump and sending it to the discharge line. 


The location of the sump pump where a discharge line is attached to remove water from the basin. Therefore, it is important to point the discharge line away from the home so no discharge comes back into the home. 

Backup sump pump:

Especially relevant is the secondary pump that supports the primary sump pump in the event of flooding. The backup activates when the water in the basin rises above a certain level.

Are there Difference Types of Sump Pumps?

In conclusion, there are two types: pedestal and submersible.

Pedestal sump pumps’ motors are located above the sump. This makes servicing the pump much easier. The pump’s impeller is driven by a long, vertical extension shaft, which is located in the base of the pump.

Whereas submersible sump pumps are mounted inside the sump. These types of pumps are sealed to prevent water from leaking into them and shorting the circuits.


i. Wikipedia. Sump Pump. Retrieved on 11/28/2012 from

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