how long should pool filter cartridges last


Author: Poolking - Swimming Pool Equipment Manufacturer


For pool owners, the quality of their swimming experience is directly related to the maintenance of their pool. One of the essential components of pool maintenance is ensuring that the filter system is working at its best. Pool filter cartridges are a cost-effective and efficient way of ensuring that the water in the pool is clean and clear for use. However, many people have been left wondering how long they should expect their pool filter cartridges to last. In this article, we'll be looking at how long pool filter cartridges should last and what factors influence their lifespan.

What are pool filter cartridges?

Before we dive into the question of how long pool filter cartridges last, it's essential to have a basic understanding of what pool filter cartridges are. Pool filter cartridges are small components that are installed into a pool filter system to catch and remove impurities and debris from the pool water. These cartridges are made of materials such as polyester, paper, or plastic and come in different configurations, depending on the type of filter system in use.

Factors that influence the lifespan of pool filter cartridges:

Several factors determine how long your pool filter cartridges can last. Some of these factors include:

1. The type of pool filter cartridge

There are different types of pool filter cartridges, and each one has its specific lifespan. Some are designed to last for up to three years, while others may only be good for a few months.

2. The frequency of pool use

Pool filter cartridges will typically last longer if the pool is not used frequently. If your pool gets a lot of use, then the filter will have to work harder to keep the water clean, which can shorten the lifespan of the filter cartridge.

3. The size of the pool

The size of your pool will also impact how long your filter cartridges last. Larger pools require more filtration, which means that the filter will have to work harder and for longer periods, thereby reducing its lifespan.

4. The quality of the pool water

The quality of the pool water will also affect how long your filter cartridges last. If the water is highly contaminated, then the filter will have to work harder to keep it clean, which can shorten the life of the cartridge.

5. Maintenance practices

Proper maintenance practices can also impact the lifespan of your pool filter cartridges. Failing to clean or change your filter cartridges regularly can cause them to wear out faster.

How long should pool filter cartridges last?

The lifespan of pool filter cartridges varies widely based on the factors listed above. Generally, pool filter cartridges are expected to last between six months to five years.

Depending on the type of cartridge and the specific filtration requirements of your pool, you may need to replace your filter cartridges every six months to two years or even longer if you maintain your pool meticulously. The best way to know when it's time to change your filter cartridge is to monitor the pressure gauge on your pool pump. As a general rule, if the pressure gauge is reading ten pounds higher than its normal operating pressure, it's time for a new filter cartridge.


Taking care of your pool filter cartridge is essential to ensure that your pool is always clean and safe for use. Understanding the factors that influence the lifespan of your filter cartridge is an important step in maximizing its usefulness. With proper maintenance practices and attention to the specific filtration needs of your pool, you should be able to get years of service from your filter cartridge.


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