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The blue color of a swimming pool is not the water that you are seeing, it's actually the reflection of the sky's blue color. When a pool is properly maintained, sanitized with proper chemicals, filtered, and pH balanced the water is clear.

AnswerWell, if you've ever accidentally stained your fingers with food coloring while baking or decorating, you'd know it's probably not a good idea -- for people or your pool surface -- to use it in your pool. I'm sure there are other, more pool-friendly chemicals out there to accomplish a blue hue.

Blue food coloring will stain the people and the probably the pool surface, depending upon the type. Talk to someone at the pool supply store. There are various solutions that can be added such as BioGuard's Polysheen that will not leave a stain and they create a sparkling water appearance.

I would add that if the pool sanitizer is chlorine based, the net effect of adding {blue} food coloring would be to have the "free chlorine" oxidize the coloring substance, reducing the parts per million (ppm) of chlorine, and in effect bleaching the it wouldn't produce any water coloring effect - until the chlorine was used up.

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βˆ™ 2011-09-13 02:53:13
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