Lessen your pool's environmental impact with eco-wise pool covers. Not only are water and carbon footprints shrunk, a pool's greenhouse gas emissions are lowered as chlorine is prevented from dissipating in sunlight. The thermal covers also reduce filtration by 50% and evaporation by 90%. Included in this range is the new Sol+Guard cover, which uses solar energy to warm water by up to 8 degrees. This is your first step to heating a pool naturally and achieving 6-week longer swimming seasons.