3 Steps to Winterize an Above-Ground Pool

Lower the water level Drain the pool to about 4-6 inches below the skimmer opening. This prevents ice from cracking the skimmer.

Add winter chemicals and plug lines Use a winter chemical kit with shock, algaecide, and a winter floater. Then plug the return lines and skimmer with winterizing plugs.

Place an air pillow under the cover Put the air pillow in the center of the pool before covering. It absorbs ice pressure and prevents damage to the pool walls.