Im so dumb I didnt take the cover off the probe. It works fine now. I got it calibrated and my tap water measures 7.5, the RO water from walmart I was using measured 8.3! And the water ran through the PUR filter on my faucet is at 7.3
chongman420 Reviewed by chongman420 on . NEED HELP DIAGNOSING PROBLEM!!! PICS So i have this reoccurring problem with the last couple grow attempts. I use Earth Juice Grow, Calmag, and Superthrive for veg with 2 tsps of high nitrogen bat guano. I use FFOF soil and I use RO water. I dont have a ph meter but I water them with plain water every other time. Temps are between 69-76. Any advice? :( Rating: 5