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Pool Tip #28: How Does a Solar Pool Cover Work?

Have you ever wondered how a solar pool cover works? It may be simpler than you think. Solar pool covers are made from two separate plastic sheets that are heat welded together with air bubbles left in between them. When the solar pool cover is placed on your above ground or in ground pool’s surface (bubbles always facing down), the air bubbles capture the heat and transfer it to the water. Placing the solar pool cover with its bubbles down will also allow for the spaces between the bubbles to trap air as well, which adds to the pool heat generation. Proper use of a solar pool cover can lead to heat insulation which can extend your swimming season. Solar pool covers will also reduce pool water evaporation.