Tech Corner: Pool Pump Problems

pool pump problems
Today, I had a customer contact me regarding an issue he was having with his pool pump. Before I get into the problem and solution, let me give you some background on Pool Pumps.

Pool Pumps 101:
A Pool Pump can last anywhere from 5-7 years depending on how well maintained it is, how much it’s used, and how it is sized for your pool. Sometimes you might need to change out the shaft seals or o-rings after a few years to keep away leaks and ensure everything working properly (see go-kits).

There are two halves to a pump: one consists of the motor, and the other is the wet end. A specific motor can be compatible with a few different wet ends, so it is important to ensure they are a compatible match. The wet end is where the actual water flows through and also where the impeller and diffuser are located. Aside from the motor and the wet end, there are some smaller parts that make up a pool pump. This includes impellers, o-rings, lids, diffusers, and other hardware.

The Problem:
He informed me that the motor on his pool pump was working, but that it wasn’t forcing water through his filtration system. He had already tried gluing the impeller back together, but had no luck.

What’s an Impeller?
The Impeller is the part on the pump that combines with the motor to create water movement. As the impeller spins, it creates a suction that pulls water through the pump and channels to create a pressure stream out from the pump and throughout the rest of the filtration system.

How do I know I need a new Impeller?
Sometimes impellers are just clogged. If you look down the channels on the perimeter of the impeller where the water is coming out, you can sometimes find pieces of debris blocking the water from moving.

If your impeller has broken or cracked, you may be able to glue it together, although I don’t recommend it. This would be a temporary fix and is only going to last so long. If your pump does not begin priming (water flowing into the lid of the pump), then you could just need a new o-ring on the lid to be re-lubed and sealed. If your pump does start priming, then something else may be causing the issue.

You could also need a replacement impeller if your pump loses prime and melts your impeller. If you replaced your existing motor with one that has a higher horsepower rating, the impeller may not be the right size, which could lead to the motor overheating and causing the impeller to melt.

The Solution:
With what this customer was experiencing, my initial thought was that the diffuser or impeller was in need of a full replacement. So, I had him send me the model number of his pump. Unfortunately, he had a pump that was no longer available, so the replacement parts were not only out of stock, but very expensive. In fact, he would’ve spent more money repairing his pool pump than he would buying a brand new one. Therefore, I recommended that he buy a new pool pump all together.

More often than not we’re able to find replacement parts without any issues. However, every now and then we will come across a pump that no longer has replacement parts easily available. When this happens, a new pump makes the most sense as we can upgrade to something more energy efficient and also make it easier to find replacement parts in the future.

If you’re having problems finding the correct replacement part for your pool pump, please contact us. We’re always here to help!

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Dylan Lane
As a small boy my dream was to grow up and have a career where I would spend all day in the sun swimming until I shriveled up. Endless cannonballs, marco polo games and an abundance of cookie dough ice cream cones.....While sadly this didn't quite happen, I luckily get to do the next best thing! Sit by a computer and help others enjoy their swimming pools! Lucky me. Enjoy and hopefully I helped.