I rinse good and go with a small drip systems and have no problems. Once a day check is good and when I start lite nutes I can check it every other day with not much change. I don't know why they would give such an up in PH. Danm sorry wish I could help. I used nothing but RO water in my system.
LOC NAR on probation Reviewed by LOC NAR on probation on . Has Anyone Else Had This Problem with Hydroton? It's raising the ph of my water in my hydro system uncontrollably. This is the same issue I had with it before and was the original reason I switched to higromite rocks. At the time I used it before however, I was not using RO water which I thought would make a difference when I switched back but it hasn't.....at all. I rinsed the rocks and let them soak thoroughly before use.....there was very little dust on them afterwards. I ran the system for two days to disinfect it and have had Rating: 5