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The pH is one of the most important factors in spa water balance and it should be tested and corrected at least every week. pH is the measure of how acid/ alkaline the spa water is. A pH of 7.0 is neutral - below 7.0 is acidic, above 7.0 is alkaline. The pH of our eyes is 7.2 . No wonder that the ideal pH for your spa is just that - 7.2 , and should be kept within the range of 7.0-7.6 for a variety of reasons including sanitizer effectiveness, bather comfort, corrosion and the prevention of cloudy water and scaling
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