When we empty our frame pool each fall we just use a piece of hose and get some suction on it and throw the other end over the side and let gravity remove the water. I can usually get most of the water out using this method. I don't know why it works, it just does, must be physics someplace. But I do know that if you loose the suction you loose the drawing power. Maybe in cold weather it would freeze up too fast? We have had lots of rain here in lower Michigan, the snow is gone and the yards are muddy and gross. I'd almost prefer the snow back. Kimrst