That looks pretty darn cool and awfully close to what I had in my head.
Maybe move the lights to the back of the room and access the grow rooms from the front of the control room.
Move the clone table to the back and have the clone room door in the middle.
I was thinking 2 rows of 3 ballasts, but with the water I think the ballasts should be up as high as possible. 12 ft ceiling so shouldn't be a problem above the doors in a single row.
Will have to check with an Electrician to see if and how we can fit water into the control room and stay within code.
I think that perhaps all the water access should go in the clone room, which should stay fairly cool. I could even use T5's for light in there.
Sorry for thinking while I type, but definitely a 4' 8 bulb T5 and water mixing in the clone room.
4 x 4 drying cabinet in the back beside the clone table and mixing tanks on either side of the door.
Where I really need input is on the ventilation.
I am in Canada so anywhere from 40 below in the winter to 100 above in the summer.
I am hoping just to go with open hoods and a large 12" vortex exhaust in each room. At 1140 cfm this should exchange the air every 2 minutes.
2 6" intake fans are 1300 cfm so they could be slowed down if necessary to maintain negative pressure if its a problem.
I would like to try venting everything to the rest of the building since it would be nice not to have to heat it in the winter.
In the summer I could install a greenhouse vent fan if the entire building becomes too warm.
I found this Airbox filter that looks cool.
http://www.hydrotek.ca/en/airbox/air-box4plus.html
Is it possible to have a 12" duct down the centre of each room with an appropriate size opening above each light.
One 90 degree elbow to send the exhaust to the control room where there is a T connector going into the Airbox from each room and exhausts to the rest of the building.
The two fresh air intakes would probably come directly through the walls to the rest of the building and could also have a main trunk and outlets to disperse the air more evenly.
Will this work if I forgo CO2 and could I get away with even less cfm??
Thanks again for your skills and everyone's expertise.
I am fairly new to this and LOVE criticism. (The constructive kind)