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Old 07-07-2012, 09:51 PM   #9
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Pool filter sand isn't necessarily white, or any other color. It is whatever color the reasonably local non-carbonate sand quarry produces. Mine is multi colored, sort of light tan in overall look. Some months ago someone reported that their local pool filter sand was black flint sand, as I recall, but black in any case. And, some newer pool filter sands are made of zeolite, some of which is a sickly green color.
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