Test the pH of your spa water and if it is above 7.6, use AquaSPArkle Spa pH Minus to lower it. Spa pH Minus can also be used for lowering Total Alkalinity if it rises above 150mg/l (ppm). Pre-dissolve the product in a clean plastic container at a maximum rate of 10g of product per 0.2 gallons (1ltr) of clean warm water.
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