Lowering pH fast !

Yeah, GH is good stuff. I've put a tablespoon in my 2 gal. Can (My tap is well water @ 6.9 no filtering) and it lowered it to about 3. 5 or so, but my soil was still @ 8.9 last night. I haven't tested it today yet.
 

bruno8437

Well-Known Member
Check you tester against your friends to make sure that it is working properly before doing any soil adjustments.
 
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