Backwashing Your Pool

Great Neck Pools Maintenance

A client asks, "How do I backwash my pool?"

  1. Turn pump off.
  2. Unless you have a hard-plumbed backwash line, unroll blue, flat backwash hose to an area where dirty water can drain.  Make sure there are no kinks in the hose to avoid it bursting.
  3. Turn multiport valve handle to the backwash position.  Whenever you turn the handle, depress it first all the way down prior to turning.  It's also a good practice to turn the handle in the same direction whenever moving it.  The direction itself doesn't matter but you just need to be consistent in the direction you choose.
  4. Turn pump back on for 60-90 seconds or until the water in the sight glass clears.
  5. Turn  pump off.  
  6. Turn multiport valve handle from backwash position to the rinse position.
  7. Turn pump on for about 20 seconds.
  8. Turn pump off.
  9. Repeat steps 3-8 two more times.
  10. With the pump off, return the multiport valve handle to the filter position.
  11. Turn pump on.
  12. Roll up backwash hose.
  13. For DE filters, you can now add DE to your skimmer to recoat your DE grids for proper filtration.  That amount varies depending on make and model so consult your owner's manual or call Great Neck Pools to confirm.