You can leave your pool outside over the winter (year-round) by following the procedure outlined in the user manual. Or you can fold it up and store it. You will then need to clean it first with mild soap and water. Clean all parts thoroughly and make sure they are completely dry before storing. Drying may take several days. Then dust the pool with cosmetic powder or talcum powder to prevent the pool walls from sticking together during storage and to absorb any remaining moisture.