So all the tap water, refrigerator, and water bottle water comes out to like 8 according to my pH tester. My only concern is that I'm doing an organic soil grow, and from what I know can't use pH down. How do I lower the pH?
Submitted February 03, 2015 at 10:55AM by scrubrubrough http://ift.tt/1zAXWRW microgrowery
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