Buffalo Blizzard Black 18 Gauge 10' Single Chamber Water Bags for Pool Closing, 6 Pack

Buffalo Blizzard Water Bags are the best way to keep your rectangular swimming pool cover secure all winter long. The water bags are manufactured from quality heavy gauge vinyl treated with UV inhibitors and anti-bacterial and anti-fungus additives. They are designed to withstand sub-zero temperatures and it is optional if you choose to use them with the loops on your winter cover. Tip: If you have trouble closing a water bag's valve, try soaking it in warm water.

These water bags should be filled 1/2 - 3/4 full to allow room for water freezing expansion. It has been designed to withstand sub-zero temperatures and has been treated with antibacterial and antifungal additives, as well as UV inhibitors to prevent fading.