why does a pool pump lose pressure


Author: Poolking - Swimming Pool Equipment Manufacturer

Why Does a Pool Pump Lose Pressure?

When you own a pool, ensuring that the pool pump is functioning correctly is essential. Unfortunately, things can go wrong and cause the pool pump to lose pressure. Understanding the causes of a pump losing pressure can help you take preventative measures, identify the problem, and fix it.

In this article, we will take a closer look at various reasons why a pool pump can lose pressure, the signs that the pool pump is losing pressure, and what you can do to fix the problem.

1. Clogged Skimmer Baskets

One of the main reasons why pool pumps lose pressure is due to a blocked skimmer basket. Skimmer baskets are used to trap debris, including dead insects and leaves, before it reaches the pool pump.

Over time, the debris can build up and clog the skimmer basket, reducing water flow, and causing the pool pump to lose pressure. The solution to this problem is simple, and it's as easy as cleaning the skimmer basket weekly or every two weeks, depending on the amount of debris.

2. Air Leaks

Air leaks can cause a pool pump to lose pressure. To function correctly, a pool pump needs water, and if there are leaks that allow air to enter the system, the pump will suck in air, causing a reduction in pressure.

To identify if there's an air leak, turn off the pool pump, and check all the connections between the pump and the pool. If there any signs of wear and tear, including cracks or loose fittings, it is essential to fix these problems as soon as possible. Failure to fix these issues could lead to costly repairs down the line or require the replacement of the entire pump system.

3. Dirty or Clogged Filters

Dirty or clogged filters can cause a pool pump to lose pressure. As the filters become clogged, it becomes increasingly harder for water to pass through the system, which can cause a gradual decrease in pressure.

To fix this issue, you can remove the filter from the system and clean it. In extreme cases, you might need to replace a clogged filter. It is important to check the filters regularly, especially during the summer months, to prevent the pool pump from losing pressure.

4. Too Much Exposure to the Sun

As strange as it may sound, too much sun exposure could cause a pool pump to lose pressure. Overexposure to the sun can lead to the pool pump overheating, which can cause the seals to expand and lose their grip. The loss of seals can cause the pool pump to suck in air, which can lead to a decrease in pressure.

To keep the pump in good working condition, it's important to keep it in the shade or partly sheltered. Overexposure to the sun can cause the bearings in the pool pump to wear out, and if left unchecked, it can cause the pump to lose its prime, which can damage the pump.

5. Malfunctioning Impeller

The impeller is responsible for pushing water through the pool pump system, and if it malfunctions, it can cause a loss in pressure. Over time, the impeller can degrade, making it harder for the impeller to push water through the pool pump system efficiently.

To spot a faulty impeller, listen for strange noises coming from the pool pump when it's running. If you hear any strange noises, it's a sign that there could be something wrong with the impeller, and it needs repair.

In Conclusion

A pool pump losing pressure can be a frustrating problem, but by understanding the reasons why it's happening, you can take preventative measures and fix the problem if it occurs. Cleaning the skimmer basket regularly, fixing air leaks, maintaining the filters, shielding the pool pump from the sun, and repairing a malfunctioning impeller can keep your pool pump working efficiently, and ultimately, keep it running for years to come.


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