No, I don’t believe it’s lockout. I increased to 1.8 gradually. Ph is always spot on , Rez water kept fresh.
Dwc at 1-1.2 cool. In veg? Or all the time? I’ve got 2 dwc buckets in the isle of flower room. I keep it at 2.3-2.5 they are very happy.Ty for chiming in. I emailed jacks w the same...