AquaValue: The Buying Group for Pool Retailing Professionals

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A term used to indicate the level of acidity or alkalinity of water. The scale of relative acidity or alkalinity, expressed in logarithmic numbers from 0 - 14, with 7.0 being neutral. A pH of 7.0 is neutral; below 7 is acidic; above 7 is alkaline or basic. pH is a logarithmic expression of the measure of positive Hydrogen ions in water. The ideal range for pH in swimming pools is 7.0 to 7.6. The pH of our tears is 7.2 to 7.4 . What's really being measured is the hydrogen ion concentration. Some would say pH stands for Power of Hydrogen.