Originally Posted by Wayne&Sam
I always do. I blow out the lines and don't use antifreeze (except for the traps and a bit in the tanks). After everything is drained I put a towel around the pump, disconnect the in and out lines and run it for a few seconds. The towel soaks up most of the water. Then I hook the lines back up for storage.
Ditto -- plus, before hooking everything back up, I make sure the in-line water filter is clean and empty, and (by mouth) blow into the supply line coming from the tank to send any misc. water back into the tank (with its drain valve open).