If you want to ensure your pool is more sustainable, an easy place to start is with a pool cover.
Pools can use a lot of energy, and according to Energy.gov, the most common way for a pool to lose energy is through evaporation. A pool’s evaporation rate depends on factors including temperature of the pool water, air temperature and humidity level, and wind speed. Using a pool cover can reduce water loss by 30 to 50 percent, according to the National Renewable Energy Laboratory.
Pools can also lose heat quickly, wasting energy. With a pool cover, pool owners can save as much as 50 to 70 percent in pool heating costs.
Pool covers are usually made from polyethylene, polypropylene or vinyl. Bubble covers are the cheapest option, but vinyl covers last longer. If your pool is an outdoor pool, using a transparent pool cover will provide more solar energy absorption than an opaque cover.
Some pool covers use tracks along the sides of the pool to prevent people, animals or debris from getting into the pool. If you are concerned about safety, there are pool covers that can hold the weight of several people. These safety covers are sometimes required in commercial pools.
Automatic pool covers cover and uncover the pool with a simple push of a button, while semi-automatic pool covers use a motor-driven system to roll and unroll the cover, but require someone to guide the cover. Manual covers work on a reel that helps you manually roll up the pool cover, or you can purchase a manual cover that folds up.
For maximum energy and water savings, use a cover at all times that the pool isn’t in use. When purchasing a pool cover, make sure it comes with a two-year warranty. If you have an outdoor pool, expect to replace it in three to five years because of UV deterioration.
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