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What is Free Available Chlorine?

April 26, 2017chlorine Free

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What is Free Available Chlorine?

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Free Available Chlorine (FAC) is chlorine that is present in the form of Hypochlorous Acid, Hypochlorite Ions or as dissolved elemental Chlorine. Free Available chlorine is free in the sense that it has not reacted with anything and available in the sense that it can and will react if needed.