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How Do I Close a Pool Filter?

Published in Pool Maintenance 2 mins read

Closing your pool filter for the winter is crucial to prevent damage and ensure a smooth start to the next swimming season. Here's how to do it:

1. Shut Off the Pump

  • Turn off the power to your pool pump.
  • This prevents water flow through the filter, allowing it to drain completely.

2. Drain the Filter

  • Cartridge filters: Remove the cartridge and rinse it thoroughly. Allow it to dry completely before storing it in a clean, dry place.
  • Sand filters: Drain the sand filter by opening the drain valve at the bottom.
  • DE filters: Flush the DE filter by opening the drain valve and running the pump for a short period.

3. Clean and Inspect

  • Thoroughly clean the filter tank and any associated plumbing with a mild cleaner.
  • Inspect the filter for any cracks or damage.

4. Winterize the Filter

  • Sand filters: Add winterizing chemicals to the sand filter to prevent freezing.
  • DE filters: Remove the DE grids and store them in a clean, dry place.
  • Cartridge filters: Replace the cartridge with a new one or store the old cartridge properly.

5. Cover and Protect

  • Securely cover the filter tank with a waterproof cover to keep out debris and moisture.
  • Ensure the cover is properly secured to prevent it from blowing off in strong winds.

6. Additional Tips

  • Consult your pool manual: The specific instructions for closing your pool filter may vary depending on the model.
  • Professional assistance: If you are unsure about any steps, consider consulting a pool professional.

By following these steps, you can effectively close your pool filter and prepare it for the winter months.

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