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Will a dark painted pool retain more heat than a light colored one and cause the water temperature to be higher?
Wiki User
∙ 18y ago
A pool painted in a dark color will ABSORB more heat than a pool with a light colored paint. Thus, the water temperature will be slightly higher. However, the paint color is a secondary factor in determining the ultimate water temperature. Factors such as air temperature, ground temperature, and solar intensity will affect the water temperature more than the paint color. Other secondary factors include wind speed and humidity (which affects the evaporation rate). Thus, it is very difficult to predict how much higher the water temperature would be for a dark colored pool as compared to a light colored pool due to the many variables involved. If I had to guess, I would say that you might get an average boost of something like 1-3 deg F with a dark painted pool - possibly a little more than that in the middle of the summer. In regards to RETAINING the heat that was absorbed, the color of the pool is nearly irrelevant. The most important factor in this case is the difference between the air and water temperatures - the greater the difference, the more heat will dissipate into the air. The best way to RETAIN heat in your pool is to use a solar blanket to keep the heat that is already there from transferring (radiating) into the air. Especially at night when the air/water temperature difference is greatest. Hope this helps ...
Wiki User
∙ 18y ago
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