How to Treat Algae in Swimming Pools


Nothing is more inviting on a hot summer day than a pool filled with cool, clean water. Unfortunately, algae can easily form in your family's pool, which will make your fresh, clean water a lot more green and unattractive. Removing algae from a pool is time-consuming, but the results are well worth it.

Things You'll Need

  • Pool skimmer
  • PH and alkalinity adjusters
  • Liquid chlorine pool cleaner
  • Remove any garbage or other debris from the surface of the water with a pool skimmer. This may make the color of the pool worse temporarily.

  • Add alkalinity and pH balance adjusters to correct the pool's chemistry.

  • Pour 4 gallons of a liquid chlorinating pool cleaner into the pool. This will help kill the algae. If the cleaner worked correctly, the pool should have a white or cloudy appearance.

  • Repeat the process the next day and once a day until the algae is removed.

  • Run the pool's filter 24 hours a day and backwash the filter four times a day until the color of the water is back to normal. This process will generally take anywhere from four to five days.

  • Run the pool's vacuum system to remove any dirt or debris from the bottom of the pool.

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  • Photo Credit Swimming pool and pool house image by Jim Mills from
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