The frequency of cleaning a pool filter depends on the type of filter and the usage of the pool.
A sand filter should be backwashed every 2-3 weeks or when the pressure gauge indicates that the filter is dirty. The sand should be replaced every 5-7 years.
A DE (diatomaceous earth) filter should be taken apart and cleaned every 3-6 months, and the grid should be inspected and replaced if necessary.
A cartridge filter should be cleaned every 1-3 months or when the pressure gauge indicates that the filter is dirty. The cartridges should be replaced every 1-2 years or when they become too dirty to clean.
A pool with heavy use or a lot of debris will require more frequent cleaning than one that is used less or has less debris. Additionally, the weather and the environment can also affect the filter, for example, after a heavy storm or heavy leaves fall, the filter may need to be cleaned more frequently.
It’s important to follow the manufacturer’s instructions for your specific filter and to check the pressure gauge regularly to ensure that the filter is working efficiently. A dirty filter can cause the pool pump to work harder, which can lead to increased energy costs and can also cause damage to the pump.