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  • Writer's pictureSean Flanagan

How Pool Filters Keep Your Water Sparkling and Safe

Have you ever wondered how your swimming pool stays so clean and inviting? Or how you can swim with your eyes open without them becoming irritated? The unsung hero in these scenarios is your pool filter. This device works tirelessly to ensure that your pool water remains crystal clear and healthy for swimmers. But how does it accomplish this vital task? Buckle up and dive in as we present a fun and easy crash course on pool filters!


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Keep Your Pool Clean & Maintained


 

The Filtering Frenzy: How It Works


The pool filter is an integral part of your pool's circulation system. Water is drawn in from the pool, typically by the pool's pump, and is then channeled through the filter before being returned to the pool.


So, what's happening inside the filter? Well, as the water passes through, tiny particles of dirt, debris, and other unwanted materials get trapped. These could include anything from leaves and bugs to microscopic algae and bacteria. By trapping these particles, the filter ensures the water returning to your pool is clean and safe for swimming.


There are three main types of pool filters: sand, cartridge, and diatomaceous earth (DE). Each has its unique way of filtering your pool water:

  1. Sand Filters: These filters use a bed of specially graded sand. As water trickles through the sand, debris and particles are trapped. They're the oldest and most common type of pool filter and can trap debris as small as 20 to 40 microns.

  2. Cartridge Filters: Instead of sand, these filters use a cartridge made from a fibrous material. The water flows through the cartridge, trapping debris. They offer finer filtration than sand filters and can usually trap particles as small as 10 to 15 microns.

  3. Diatomaceous Earth (DE) Filters: DE filters offer the finest filtration of the three. They use a powdered form of fossilized exoskeletons of diatoms (tiny, ancient organisms). DE filters can trap particles as small as 3 to 5 microns.

Maintenance Magic: Keeping Your Filter in Top Form


Like any piece of equipment, your pool filter needs regular maintenance to keep it working optimally. Here are some quick and easy ways to maintain the different types of filters:


  1. Sand Filters: Sand filters should be backwashed when the pressure gauge reads 8-10 lbs above the starting level or at least every six weeks. To backwash, you reverse the water flow to flush trapped debris out of the filter. Over time, the sand in the filter will also need to be replaced, typically every five to seven years.

  2. Cartridge Filters: For these, remove the cartridge and clean it with a hose, ensuring you get between the pleats. This should be done every few weeks during peak swimming season, or whenever the pressure gauge reads 8-10 lbs above the starting level. The cartridge will eventually need to be replaced, usually every one to three years, depending on use and maintenance.

  3. DE Filters: Like sand filters, DE filters should be backwashed when the pressure gauge reads 8-10 lbs above the starting level or at least every six weeks. After backwashing, new DE powder needs to be added. Over time, you'll need to completely clean out the filter grids and replace the DE powder, typically once a year.

In addition to these maintenance tasks, keep an eye on your pressure gauge. A sudden increase in pressure might mean the filter is clogged, while a sudden decrease could indicate a crack in one of the filter components. If you notice anything unusual, don't hesitate to call us at Sea Breeze Pools.


Keep Your Filter Running Strong with Sea Breeze Pools


Pool filters play a vital role in maintaining the cleanliness and safety of your swimming pool. By understanding how they work and how to maintain them, you can ensure they continue to do their job effectively. Remember, while pool filters do an excellent job of cleaning, they work best as part of a regular maintenance routine that includes chemical balancing and regular cleaning. We can handle that regular maintenance and upkeep for you, so you can focus on relaxing and enjoying your pool space. 


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Sea Breeze Pools services the following locations in Greater Central Florida:  

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