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Thanks a lot guys, I went and purchased a digital ppm tester and PH tester today. Also got all new nutes, apparently the duffball that sold me the last ones sold me soil ones. So we start all over with new water, clean hoses and res. The nutes slimmed my system co if your new to hyrdro as I am...

Hello, I am just getting started with a flood and drain system. I have well water and the PH is at about 7. I do not have a PH meter yet Ive been using just the dropper and color match. when I use PH down to get to the optimum levels my PH goes right back up to the original readings 24 hours...