In reference to the first photo, I would use wider tomato cages(or some other apparatus) so you can spread out the branches to make more of a canopy...the benefits would be less veg time(you wouldn't be spending time growing extra stem and undergrowth), a uniform crop, and you would be able to drop the lights to reduce stretch and increase bud size and finish quicker. That being said, you do have a bad ass setup, and if you don't change a thing I don't blame you. Great Job!
Vary nice. If I were you. Use the HEPA filter with the Charfilter. Any small part from the scrubber will get suck in the Hepa and not go in your eye. Use a size reducer if needed. Plus remove a fan and save power on one fan.
Your years is sure showing off ability on creating a clean smother operating room with out the cost on super pro gear.
Sure is, but I sure wouldn't want to have to disassemble those bad boys! It's already tough enough pushing thru, I'd imagine that tight would make things interesting. If it were me, I'd probably just cut the PVC in the middle of the runs and put in some unions when putting everything back.