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Old March 1, 2018   #6
Join Date: Jun 2010
Location: Romania/Germany , z 4-6
Posts: 1,581

I use pH paper, the kind that goes from about 4.5 to 9, so more in the middle. I checked it against the lab meter and various things, and I find it perfectly reliable. Now if you wanted hydroponics where you want to be super accurate, maybe it's not ideal, but for soil it's enough.
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