All swimming pools are not created equal. You need to know your pool. Pool owner mistakes are caused by insufficient knowledge of pool equipment. This is one main reason why hiring a pool service is best to properly maintain your pool. With that said, there are three main types of pool filters (sand filter, cartridge filter, and diatomaceous earth filter or DE). Let’s explore each type.
- Sand Filter – This type of filter uses special sand. Sand filters can remove particles up to 20 microns. They typically last between 5 – 10 years. This is the oldest form of filtration for swimming pools. Sand filters clean by letting water flow into the filter and pass through the sand. Debris then gets stuck in the sand and then allows the clean filtered water back into the pool. It is important to note that this type of pool filtration system requires regular maintenance.
- Cartridge Filter – Instead of using sand, this type of filter uses a fibrous element which water passes through. The maintenance for cartridge filters is less than sand filters. They are very similar to the air filters used in your car. Cartridge filters can typically trap debris up to 10 microns. This type of pool filter usually lasts between 1-3 years before needing to be replaced. These are commonly used in above ground swimming pools.
- Diatomaceous Earth Filter (DE) – This type of filter cleans by passing water through a thin layer of DE that is coated onto a grid. Like sand filters, DE filters require backwashing to remove debris from the filter itself. This is usually completed annually. Older DE filters may require more frequent backwashing.
Pool filter maintenance depends on your filter type. It is important to know what type of pool filtration you have. Swimming pool filters are often called the kidneys of pool equipment. They need to be maintained on a regular basis. Contact a reliable pool service company if pool maintenance seems challenging.