How Often Should a Backwash Be Done Once Your Pool Is Up and Running?

After receiving your new inground swimming pool, you’re ready to dive right in. However, it requires regular maintenance, including backwashing the filter, to ensure it remains clean and healthy. Backwashing involves reversing the flow of water through the filter, which helps to remove dirt, debris, and other contaminants that can accumulate over time. The frequency of backwashing depends on several factors, including the size of your pool, the number of swimmers using it, and the type of filter you have.

As a general rule of thumb, you should backwash your pool filter every 4-6 weeks. However, if you have a heavily used pool or live in an area with a lot of dust and pollen, you may need to backwash more frequently. You can also check the pressure gauge on your filter. If the pressure has increased by 10 psi or more, it's time to backwash.

To backwash your pool filter, follow these steps:

  1. Turn off the pump.
  2. Set the filter valve to the "backwash" position.
  3. Turn the pump back on.
  4. Let the water run for 2-3 minutes, or until the water runs clear.
  5. Turn the pump off.
  6. Set the filter valve to the "rinse" position.
  7. Turn the pump back on.
  8. Let the water run for 30 seconds to 1 minute.
  9. Turn the pump off.
  10. Set the filter valve to the "filter" position.
  • Backwash your filter more frequently during periods of heavy use or when there is a lot of debris in the pool.
  • Clean the filter regularly to remove any dirt or debris that may have accumulated.
  • Inspect the filter regularly for any tears or damage.
  • If you have any questions about backwashing your pool filter, consult with a pool professional.
  1. How long should I backwash my pool filter?

    • 2-3 minutes, or until the water runs clear.
  2. How often should I backwash my pool filter?

    • Every 4-6 weeks, or more frequently if necessary.
  3. What is the purpose of backwashing a pool filter?

    • To remove dirt, debris, and other contaminants that can accumulate over time.
  4. How do I know when it's time to backwash my pool filter?

    • Check the pressure gauge on your filter. If the pressure has increased by 10 psi or more, it's time to backwash.
  5. What should I do after backwashing my pool filter?

    • Rinse the filter for 30 seconds to 1 minute, then set the filter valve to the "filter" position.
  • Hayward W3SP2320XRE Pool Filter
  • Pentair 011752 Clean & Clear Plus Cartridge Pool Filter
  • Intex Krystal Clear Sand Filter Pump

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