Ph keeps dropping 3.9. 0 ppm day 57. Does pH matter with no nutrients in water? R.O water fluctuations from 3.9-5.5 has been like this for 5 days. Gals look fine. Sent from my iPhone using Grasscity Forum
No pH means nothing during flush. With 0 nutes there is nothing keeping your pH from floating. Cal mag and other minerals will hold pH stable and without them it drops like a rock. My pH is around 3.9 right now. Im on day 6 of my flush in RDWC.