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PH and Total Alkalinity Tests . What if my pH readings on the test strip are too high? “The pH scale has a range of O-14 with 7.0 being neutral. Water with pH below 7.0 is Acidic, and above 7.0, water is Alkaline. For spas, the ideal level is 7.5, which is slightly alkaline which protects the spa finish and equipment from corrosion and ... ................
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