Getting ready to use my old Hayward 16" sand filter.
I have emptied the filter by opening the drain, removing the pump valve and sticking a hose into the sand and washing it.
It has now been empty about two weeks with only the sand in it "no water" would this be good enough before hooking it up to the pump and pool?
Should I then immediately backwash until the water runs clear?
P.S. This filter sat idle about 5 years