saw them calibrating one mine was never calibrated i didnt know it had to be only had it a month first grow was having ph problems ph jumping all over so i went home and got it NEVER should of done that my ppm meter reads 1 not gonna feed plants just poured distilled water in the net pot was going to start flower friday now dont know plants look sad
biggzhse Reviewed by biggzhse on . hydro store messed up ph calibration HELP STINKY hey i was in my hydro store today saw the calibrating meter i asked did they do mine they told me to bring it in the said it was off so they calibrated now all it reads is very high like 11.4-16.0 ph dumped alot of ph down no change scared to feed my plants the open tomorrow at noon what to do just wait? Rating: 5