How Long do Pool Filters Last?

The lifespan of pool filters can vary depending on the type of filtration system and the frequency of cleaning. For instance, a filtration system that is used in a sand filter can last up to a year, and a filtration system that is used in a cartridge filter can last up to three years.

To predict the lifespan of a pool filter, it is essential to consider the application. In sand filtration, the cartridge needs to be replaced once a year, or after 1,000 hours of use. In cartridge filtration, the cartridges can last up to three years.

How Long do Pool Filters Last?

Common pool filters

Sand filter

Sand filters are quite popular – and for good reason. Sand filters are easy to maintain as they use high-grade sand, which is easy to clean. It is, however, important to clean the sand filter at least twice a year in order to remove fine particles that collect in the filter.

Clogged filters can quickly damage the pump and the filter as the sand can clog the impellers. The lifespan of a sand pool filter cartridge, which can last up to a year, can vary depending on how well it’s maintained.

Cartridge filter

Cartridge filters make use of plastic or cloth cartridges filled with water. Cartridges are easy to replace, and the water can be simply drained out.

Cartridge filters tend to last longer because they do not rely on sand or granular chemicals to filter the water. These filters can even last for three years but should be cleaned out regularly in order to reduce clogging.

What do pool filters do and what is the purpose of having one?

Pool filters help to filter the water. They consist of a series of tiny pleats that trap small particles. These particles collect by the millions, forming a thick layer at the bottom of the filter.

To keep your pool water as clean as possible, it’s necessary to replace your pool filter regularly, at least every six months.

Why it’s important to clean the filter

Properly maintained filters using sand or granular chemicals can last anywhere from six months to three years. However, if not maintained, filters can become clogged and eventually clog the impellers, damaging them beyond repair. Pool filters require periodic cleaning in order to remove particles that have collected at the bottom of the cartridge.

A filter that is clogged will cause water to overflow into the pool, potentially damaging your pool liner and pump.

How often should I clean the filter?

Pool filters should be cleaned regularly, generally once or twice a year. However, the frequency will depend on your usage. If your pool is frequently used, it’s recommended to clean it at least once a week. If your pool is not often used, it’s recommended to clean it every two to three months.


It is important to replace pool filters when they reach the end of their lifespan. At that point, the filter will not be able to filter the water properly, which will result in an ineffective system.

Be sure to check the quality of your pool filter cartridges and clean out your filters regularly. If you’re ready for professional pool filter cleaning services, then it’s time to contact Aquanomics Pools! We clean many types of pools and can help keep your pool water safe and clean.