Hey guys I was wounding about hydroponic reservoir with the ph. I have a blue lab ph stick which stays in the reservoir all the time but I notice if it's at the top of the reservoir like 4 to 6 inches it reads a 6.1 to a 6.4 now if I put the ph stick at the bottom of the reservoir it reads a 5.4 to 5.6 I just find this wired. So I was wonder where do you guys take your reading from or is this just me. And help would be great thanks
Is there a reason you keep it in your res? I would wager prolonged exposure to liquid that is not a buffer solution may have screwed the calibration of your meter. Can you take a pic of your pH stick? For what it's worth yes that is odd. 1000 watt Scrog Journal