Well, I've reduced the "on" mode to anything below 325redox, so I'll see if my skim levels increase at my new base orp of 350 (which doesn't trigger ozone).
But this introduces a too many variables to make an observation, it occurs to me. 1. I have a higher level of ORP that seems to have nothing to do with ozone. 2. the skimmer may respond differently to the higher orp regardless of ozone.
Arg.
