ph down homemade

  1. Hal 8999

    New Grower Citric Acid with Distilled Vinegar for PH Down

    I have noticed that I can not find General Hydroponics ph down powder. The liquid is not as strong and will get expensive over time. I think I will try using a gallon of distilled vinegar and four ounces of citric acid powder dissolved into it. The mix could end up doing better for me due to the...