quick ???
DM.....looking pretty dialed in.
Just wondering why with all the time, money and resources you've spent to date why you wouldn't institute a chiller?
If you're running your room temps at proper levels (74-78F) then that will most likely be your water temps. Which undoubtedly won't kill your plants but will definitely limit root proliferation.....and potentially lend towards root issues. At very least the chilled water seems to aid in essential oil development and ripening. IMO
In the event your running CO2 and temps at (80-85F) then you'll really have issues. The only way you could have proper root temps would be to run your room in the 60's which is obviously not an option given it will dramatically slow plant metabolism.
That said, it's clear you're an experienced grower....just curious why you'd roll the dice on root health on such a grand scale?
It would be interesting to see you run one system chilled and the others not to see if there was any notable difference.
Aside from this question on the chilling, all I've got to say is "your set up looks amazing brother, keep fugging rocking it" :)