The pH scale has a range of 0 - 14, with 7.0 being neutral. Water with a pH below 7.0 is acidic and above 7.0 is alkaline or base. For hot tubs, the ideal level is 7.5 which, being slightly alkaline, protects the hot tub finish and equipment from corrosion and provides optimum bather comfort. Use Lo 'n' Slo to decrease the pH. 1 kilo £ |
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