Pool Tips >> Chemicals
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Comment by Timothy Graham on February 1, 2012 at 8:05pm This could also be black algae, a build up of metals, or even mold. I would like to know a complete water analysis before make any concrete recommendations. Chlorine levels; both total and free, ph, alkalinity, calcium hardness, copper & iron, and even phosphates. This will help in determining the cause of the greyish spots. www.bestpoolandspastore.com
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June 14, 2012 from 11am to 12pm – Multiple Locations
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