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S.O.S Yinmik 4-1 ph calibration messed up. HELP
DoughHeadstarted grow question 7 months ago
I have a Yinmik 4 in 1 ph ec ppm tds meter. I tried to calibrate the ph and saved 4pg as 7.. then 7ph as 10. I've tried restarting the calibration on nothing. I need to get it correct. Plants need fed and new one is 3 days out. No other way to test. Any help?
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Sciolistic_Steveanswered grow question 7 months ago
same way you re-callibrate it any other time... just re-do it. instructions? is sthere a reset button?
buy ph-buffered nutes and forget about the ph pen :P
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