White vinegar, you need to test your tap water first to determine how much you need to lower it. Start with a small amount of vinegar and then test again. Each tap water is different from city to city all depends on how much chlorine they put in the drinking water.
whatsthatsmell Reviewed by whatsthatsmell on . Vinegar for ph down Can anybody tell me what type of vinegar is used to adjust ph? Red wine, apple cider, white? Also, whats the ratio to mix? How much per gallon to bring ph down 1 full point? Thanks:thumbsup: Rating: 5