Hey everyone, have been reading alot on your forums soaking up the info, and thought it was time to join up and be apart. I work at a non-profit summer camp and conference center, and we try to grow a lot of produce to offset our costs ( we dont charge the kids anything to come , everything is on donations) and want to give the kids and summer staff AP experience to help grow the community and raise a new generation of gardeners! so I am adding on to out already 3/4 acre garden with this system, and hopefully i can convert everyoneto AP! here is what i have so far, have done a TON of research, and have hopefully gotten pretty close on most of this. advice is welcome, I'm a quick learner

our system so far

250(max) FT thinking 230-240 in reality

6 - 3x3.5 ft growbeds for a total of 63 sq feet of space

planning 12" of 3/8s smooth decorative rock for media.

55gallon sump burried for cooling

1800 gph pump with float switch

2 1inch pvc with 5/32 holes drilled to distribute the water. (splitting the GB in thirds)

1/2 inch recirc spray bar back into the FT for pressure regulation