guy u have the space i dreamed of
this is my ideal set up
Rdwc...........with a res
done right u can well get shop growing plants in less then 6 months if u run exps with autos to tune the system in quicker
here i love this system if they offered it in the usa i would grab it
http://alienhydroponicsystems.co.uk/start.html
as i can figure something like that modiifed to work with a water chiller and some micropore stones
something like that and u add in a automatic PHer
the only trouble i been having is the flushing but i think i got it .............setting it up on 4x4 like that video and then at the bottom rigging a valve system so i can just drain the buckets out from the bottom (have a mesh screen over the drain ) ..........let them fill up again (to flush ) bubble the water for 60 mins let out ..fill them back up add the feed and ph the system let it go for a week
with a res on it feeding the mixing cell u are always at water lvl ......the auto PHer keeps at target lvl .........and since the mixing cell is a bucket if u adjust the feed to fill that one too u have 4 days of good water no need for little extra to replace what they took
i just never had a controled /large enough area for that build yet