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Product Image ph-alk-down-ph-alkalinity-decreaser-by-freshwater
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pH/Alk Down PH & Alkalinity Decreaser by FreshWater

$ 8.99 $ 10.99

Adjust your hot tub's PH & your Alkalinity down with this. You'll want to adjust PH first, never adding more than 1 ounce at at time. Give PH about 24 hours/one day to settle in before adding anymore adjuster. Then you can adjust your Alkalinity, hardness, and sanitizer.