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Sand Pool Filters & Skimmer Systems

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Swimming Pool Filter and Skimmer Systems

Nothing beats a dip in a crystal-clear, sparkling pool on a hot day. To enjoy your pool to the fullest, learn more about pool pumps with filters and other pool-cleaning accessories.


Frequently Asked Questions


Q: How often should a pool be filtered?

A: A pool should be filtered every day to prevent algae growth. Depending on the size of the pool, run the swimming pool filter for five to 10 hours. In hotter weather (above 85 degrees Fahrenheit), run the filter for eight to 10 hours. Determine the volume of your pool and the flow rate of your swimming pool filter to find out exactly how long you should run the filter. It’s best to run the filter during the hottest part of the day because that’s when algae are most likely to grow. You must turn it off when you’re using the pool. Learn more about keeping your pool beautiful and clean with our pool maintenance guide.


Q: What happens when you filter a pool?

A: A pool filter system works by pulling water from the skimmer — the rectangular slot in the wall near the water’s surface — and pumping it through the filter, where algae, debris and bacteria are removed. From there, filtered pool water is routed back into the pool via the return jet. Some filtration systems also involve stops at a water heater and saltwater chlorine generator, but both are optional components.


Q: Does a pool really need a filter?

A: Pools must be filtered to be sanitary. Without pool pumps with filters, pool water can harbor bacteria and algae. Filtered pool water doesn’t just look more inviting; it keeps swimmers safe and healthy. Be sure to replace the filter cartridge every one or two years or, if it shows wear before then, to keep the filter working correctly and efficiently. If your pool isn’t as clear as you’d like it to be, check out our guide on removing algae.