How To Clean A Pool Pump Impeller?

Published on August 21, 2018 by Duncan
How To Clean A Pool Pump Impeller?

You are probably wondering what a pool pump impeller is and how it functions.

The impeller is used in the pump to pull and push out water in the pump. When you have a cracked or broken pump basket, debris will get into the impeller, and it becomes clogged, impeller not spinning or stuck.

How To Clean A Pool Pump Impeller?

It is essential to fix the clogged pump impeller as soon as possible to prevent further damage. This article will show you how to identify signs of a clogged impeller and how to fix it.

How To Identify a Clogged Pump Impeller?

  • Pool filter pressure – One of the first signs of a clogged pump impeller is when the pump filter pressure falls below the recommended threshold. The reason for this could be clogged pipes, pump basket, or a clogged.
  • Pump sound – if you hear your pump making a sound like its straining then it could be a clogged impeller.
  • Leafy pool – leaves are one primary cause of problems for the impeller. This is evidenced with many leaves on the pool surface; this eventually finds itself in the pump impeller.
  • Low or no flow of water through the pump could be a symptom of a clogged pump impeller.

How To Fix A Clogged Pump Impeller?

  1. The first step is to shut off the pump.
  2. Next, remove the nuts that house the pump volute/impeller.
  3. Use a flat head screwdriver to slide the seal plate and motor back and forth. If the impeller is clogged, it will be difficult to rotate.
  4. You should notice some of the debris that has caused the clogging. You can use your screwdriver to remove the debris.
  5. Your impeller could be clogged with gravel or concrete, and you will need to remove the impeller the shroud to access it.
  6. Once you have cleaned it, replace the removed parts to their original position while ensuring that the O-rings are well tightened.
  7. Refill the pump with water and then restart it.
  8. You should notice that the pressure has gone back to the recommended levels and water is smoothly flowing through the pump.

How To Prevent Your Pump Impeller From Clogging?

Since clogging of the pump impeller is through a damaged pump basket, you will need to replace it when it shows signs of tear and wear. Chemicals in the pool often react with the basket causing it to tear easily.

You will also need to ensure that you clear any leaves and debris that are on the surface of the pool. This requires regular cleaning of your pool.

If you notice that your impeller is not clogged, then this could be a different problem that will require the help of an expert.

How To Unclogging Pumps Impeller Video


Cleaning your pool pump impeller is a simple process that you can do it yourself without the need of an expert. The reasons for a clogged impeller include the accumulation of debris in the pump basket, which flows into the pump.

You can identify a faulty pump impeller by the sound it makes, low filter pressure and low flow of water through the pump.