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Do the bubbles on a solar cover go on top or in the water?


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Wiki User
2015-07-15 18:42:27
2015-07-15 18:42:27

The bubbles need to go in the water, facing the bottom of the pool.


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The bubbles you see in water are air bubbles. they rise to the top then pop when they reach the surface.

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When water boils, it turns to a gaseous state (water vapor). The bubbles are simply water vapor bubbles rising from the bottom to the top.

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Down, if you hope to heat your pool with it the bubbles (in theory) will heat up from the flat side. As there is more surface area from the bubbled side more heat (energy) will transfer to the water. I've never read any studies myself but I've read differing opinions from people in other posts. Some state the the solar cover actually blocks the sun and less heat is transfered on sunny days and that it is more beneficial to use take the cover off. Personally I find that if you leave the cover on when not using the pool, except when it's raining, the temperature stays the highest. Ensuring the cover is clean and there is no standing water on top of the cover really helps.

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I have had several pool covers over the years, blue, blue and black, clear, clear with diamond shaped bubbles. Last year I purchase a "Gold Series" solar cover. It is blue on the top with a reflective good metallic layer that faces down. This cover is by far the best cover I have ever owned. It's high quality but more importantly I have 5-7 more degrees in water temperature then I have ever had. In July I had to take it off the water was so warm. Very pleased.

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My answer is, that there are air bubbles in the bottom of it, (WHEN ITS BOILING) Than those air bubbles rise to the top, & That's how hot water bubbles more than cold water.

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