Backwashing - keeping your pool filter happy and clean

Your Swimming Pool filter will need to be regularly backwashed to remove the retained particules from the filtration process. Backwashing is the process of reversing the flow of water through the filter which lifts the retained particules from the filter surface and directs the dirty water down the drain and away from the system.

Always backwash the filter after vacuuming the pool or at least on a weekly basis.

NOTE – Make sure heating is switched off and allowed to cool before starting the backwash procedure.

  1. Turn off pump
  2. Turn MULTIPORT handle to backwash position
  3. Open valve on backwash line (if fitted)-  The backwash line is usually to the right of the multiport valve and often has a small sight glass in line
  4. Turn pump on
  5. Leave to run for approx. 60 seconds. There is usually a sight on the MULTIPORT to see when the water runs clear
  6. Turn off pump
  7. Turn MULTIPORT handle to rinse
  8. Turn pump on
  9. Leave to run for approx. 10 seconds
  10. Turn off pump
  11. Turn MULTIPORT handle back to filtration
  12. Turn pump on and recommence filtration
  13. Close valve on backwash line (if fitted)
  14. Turn heating back on once filtration has recommenced