Backwash while the pool pump is off by following these steps:

  1. Put your multi port valve in the “backwash” position.
  2. Turn the pump on and let it run for 1 minute, or until you don’t see any dirt coming through sight glass anymore.
  3. Turn the pump off.
  4. Put valve in the “rinse” position and let run for 30 seconds.
  5. Now, put the valve back in the “filter” position and turn the pump on.
  6. The final step is adding DE (diatomaceous earth). Ignore this step if you have a sand filter.

Refer to the manufacturers instructions on your filter to find how much DE to add after a backwash.

Why This Is Important: It’s important to keep pressure down on the filter.