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Solar Covers heat your pool in two stages: first by absorbing solar energy to heat the pool, and then by retaining the heat to keep the water warmer longer. The small bubbles on the Solar Cover are filled with air that heats up when the cover is in the sun.
This is an important contribution to the pool's heating needs. A pool cover will decrease the solar gain contribution to some extent, depending on what type you use. A transparent bubble cover may reduce pool solar energy absorption by 5%â15%. A completely opaque cover will reduce it by 20%â40%.his is an important contribution to the pool's heating needs. A pool cover will decrease the solar gain contribution to some extent, depending on what type you use. A transparent bubble cover may reduce pool solar energy absorption by 5%â15%. A completely opaque cover will reduce it by 20%â40%.