Turning on the water
8. Now you are ready to turn on the water. Turn on the water and leave the filter on bypass and check for leaks.
9. Press the REGEN button for several seconds which will start a manual backwash. Once controller is in
backwash unplug it so it will stay in backwash as long as necessary.
10. Now you can slowly turn the bypass valve to the service position. First open the Inlet side of the bypass
valve. Second slowly open the Outlet side of the bypass until it is in the full service position.
11. There should be no media coming out of the drain line, but the water will be turbid and dirty looking. Leave
the controller in backwash as long as it takes for the water to run clear. Once clear you can plug the controller
back in and let it finish the backwash and rinse cycle. The backwash takes 10 minutes. The rinse takes 6 minutes.
It is recommended to put the filter through a second backwash before putting into service for the house.
12. Note it is normal for some small amount of dust and fines to come out during the backwash, although you do
not want to see a large amount of media coming out, which would mean you have very high water pressure, or
the drain flow for the controller is missing.
13. If possible verify that the backwash flow is 7.5 gallons per minute, which is the recommended backwash flow
rate for 1.0 and 1.5 cubic foot models. If you have a 2 cubic foot it should be backwashing at 10 gallons per
minute. You can easily run the drain hose to a bucket and using a watch verify the flow rate in gallons per
minute. An adequate backwash is critical to properly clean the media.
Maintaining Your WS1 Nextsand Filter System
There is little or no maintenance required besides backwashing. The media will not have to be changed often,
however it could possibly become contaminated and not backwash properly in which case it would have to be
changed.
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