We have put in our last set of plugs. So now all three R&D zones are up and going. It will be interesting to see the results. We will be managing / monitoring pH as needed.
We changed back to our original way of water flow in the system. We are not having continuous flow, we are now back to flow on a timer. Ex: 6 x / day 15-30min (depending on temps etc.)
Will follow up on this. We are thinking this is why we received the growing / root problem in ZONE C?!