In our previous blog, we discussed one form of sump pump known as a submersible pump. Sump pumps also come in above-ground forms, but they both serve similar purposes. But how does a sump pump work?

Sump pumps work using automatic water sensors that activate the pump when the water level gets too high. These pumps use an effluent, otherwise known as a discharge line, to remove water.  The water sensor typically works through a series of valves.

Below, we will go into some detail on different parts of sump pumps.

Different Parts of Sump Pumps and How They Work

Part #1: The Pump Pit / Basin

The sump pump pit is a hole in the ground that contains the sump pump. The basin is in the lowest part of your location that needs water drained. Typically, this means your basement or another similar crawl space.

The pit contains all of the other parts that might include a float activator or pressure sensor.

Part #2: A Float Activator

A sump pump with a float activator waits for a piece inside the pit to raise to a certain level. The level of the object is dependent upon a flow of water entering the pump. Once the item hits a certain water level, the pump activates.

It is a less expensive form of sensor, as most sensors rely on pressure.

Part #3: Pressure Sensor

A pressure sensor is typically your preferred sump pump part because it is more reactive. Because water exerts more pressure than air, a pressure sensor waits for the level of stress it expects with water.

Once the water pressure reaches a certain level, the motor activates.

Part #4: Centrifugal Pump or Impeller

Most standard sump pumps use centrifugal force to spin. The spinning rotation is supported by the continual push that comes from the water.

This situation also applies when using an impeller. An impeller is a fan-like device that continuously spins with support from the motor.

As the basin continuously fills with water, the impeller uses the power from the motor to force it out through a disbursement pipe.

What Types of Sump Pumps are There?

There are two forms of sump pump:

  • Submersible pump – a submersible pump sits inside of the water. There is a grate in the basin to keep debris out, but the pump must constantly be submerged to work.
  • Pedestal pump – A pedestal pump puts your pump on a pedestal to keep it out of the water. Instead, a pipe leading out of the pump called an inlet pipe draws water from the basin from above and forces it out through another tube.

You’ll find that submersible pumps are more common, as they are popular in residential applications.

Wrap Up

Finding the right pump for you can be tricky, so contact the specialists at LN Electric to be sure. Our company keeps a vast stock of products that include these types of pumps. We also offer motor repair and rewind services, so contact us today for details.  

Call (416) 661-5667