Sand filter pools are easy to winterize.

Yes, it’s straightforward. You don’t have a heater to worry about, so the process is mostly about protecting the pump and filter, adding chemicals, and covering the water.

Lower the water level to about 6 inches below the skimmer — that’s the main thing. Then backwash the sand filter thoroughly. After that, drain the filter tank (remove the drain plug), and leave the multiport valve set to