i have considered these...as with rolling them out of an apartment...that would be simple... find a unit that has an attached garage...how wide are these units and what about hight? could they pass through a door easlyer and can the wheel be picked up by 2 people without taking it apart? how many could you see one person running back to back? what about 6 of these in that new DR 400 room the 9 fooot by 9 foot hydro hut.... all with 600 watt digitals and plants at a week and a half apart from each other...
the cylinder part is 24 inches wide. sitting on the tray/stand its 31 inches wide and over 6 foot tall.
you undo the 6 inch gear clamps holding the cool-tube in place and you can pull the cylinder away from the stand. empty cylinder is about 30 lbs so even if you had it packed and just watered its not going to be more then 100 lbs. the cylinder is one whole solid part and virtually indestructible. you could get inside it and roll down a grass hill and not do anything to it, if you where on the road it would get scuffed up but it would still be totally functional, even if you ran straight into a wall it would be fine. being one solid part makes it very strong and stable. two people could move it fast and as far as needed and for one person it is awkward but still do able with relative ease.
if i had nothing else to do i could run 50 and just use longer plumbing and share reservoirs. i would want an automatic trimmer if i had 50
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you could go with 6 in that space if you had 2 against each side and the 2 in the center would have to be on a floor dolly that also supported the reservoir.