Quote:
Originally Posted by lwmcguire
Food grade citric acid
Dissolve it in a water dilution at around 6% by weight or volume, whichever is easier for you
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Ditto - I use this in the RV as well as my brewery to eliminate “beer stone” aka calcium buildup. You will find food grade citric acid in the canning supplies aisle of a grocery store. Let it soak for 15 - 20 minutes then flush.