Water Tubes will keep the cover from sinking into the inground swimming pool. Tubes should ideally be touching each other end to end (around the pool). The Heavy-Duty Tubes are made of 20 gauge vinyl. They will not split, rip, puncture or break.
Installation is easy! Simply fill to 75-85% capacity (to allow for expansion of ice) with a garden hose and close the leak-proof valve. Follow manufacturer's recommended fill capacity and instructions.