What is a Sump Pump?

Know What a Sump Pump is

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What is a Sump Pump?  Here are the basics.  A sump pump is ......
  • The main component of a sump pump system that is used to remove water from a basement that would be damp and wet if a drainage and a sump pump system were not used
  • Used to remove water from a pit.
  • Operates by some source of energy (electricity, water pressure, battery, generator).
Do you need a sump pump?

What is a Sump Pump component?
  • Sump pump components may include motor, float, switch, volute, impeller, protection screen, cord, discharge port.
    • Motor types are single pole, split phase.
    • Float types are tether, vertical (mechanical or magnetic).
    • Switch types are diaphragm, float-switch, controllers (microprocessor, digital level)
    • Volute is the chamber in which impeller rotates
    • Impeller rotates and pushes the water out.  Its source of power is the motor.
    • Protection screens may be used to prevent small debris from collecting in the volute or obstructing the impeller.
    • Cords are plugged into electrical current.  Piggyback switch cords are extremely valuable. The main cord is plugged directly into the electrical current; it is for the float-switch operation; the cord that plugs into the piggyback operates the motor. If the float-switch fails the motor cord can be plugged directly into the electrical current and controlled manually. 
    • Discharge ports are connected to a pipe (PVC or garden hose) through which the water is pumped.

What is Sump Pump construction material used for components of a sump pump?
  • Motor housing are generally thermoplastic, cast iron, stainless steel or cast bronze.
  • Cast iron and bronze have longest life span.
  • Volutes are generally thermoplastic or cast iron. 
  • Impellers are generally thermoplastic or cast iron.

Discover what construction material is used by different manufacturers for sump pumps.

Select sump pump type to view construction material used.


Do you need a sump pump?

What is Sump Pump size?

Sump pump size is defined by motor horse power.

Discover HP used by each manufactured pump 

Sump pump size is also defined by pit size required.

Discover pit size required for each manufactured pump

Use the links below to discover (read more detail) on what a sump pump is and how specific sump pump types work or see how the actual sump pump types operate (Videos).  

  Sump Pump Type
Read Details of How Sump Pumps Work

Sump Pump Type
See How Sump Pumps Work (Videos)