2 48" rails per tote, 6 spots per rail, i have 2 systems. I made a couple changes, I glued a piece of pvc pipe on the bottom of the fence post, then drilled thru the center with a 2" hole saw for a drain and attached 2.5" drain hose to that into the res. The pump feeds up pvc pipe to about 3" out of the tote, then I attached a piece of hose from there to the spray bars so i could lift the rails and pull the res out easily. The end caps are siliconed on both ends and i drilled holes for the spray bars to pass through, with water tight grommets. I also added hold down clips at the netpots to secure them, I used the little plastic clips that hold in screens. I wasn't expecting anything out of it really. It was a first run, in my first room with my first hydro system. I've only done outside organic soil in the past, so there was a BIG learning curve. I had early heat issues, which led to root issues, I tried bleaching the system to kill the root pathogen, but that hurt the plants because of the weak root system. I had water issues, we had awesome water in town, but multiple water mains broke in the spring, around the time i started, and our water quality went to shit. A pipe came loose dumping my res and went unattended for 24+ hours, a pump died around week 6 and i shut the pumps off for 24 hrs a couple times. I nute burned the crap out of them around week 4 of flower.
But it's all good ..i learned enough useful information to make the next go even better. I improved the airflow in my room to get the heat out, ducted my light separately. I started using Hydroguard as well in everything i have, my res's have hit upper 70's a couple times and not a sign of root problems. I need to insulate my rails, they warm up under the light and heat the water slowly over the course of the day. Once i do that I'm confident i can keep my res's under 72F even during the heat of summer. I had to get an RO filter. I need to connect pvc better, even though it can stay together just by pushing it together..it's not a sure thing..and it leaks. I now know the plants will survive at least 30 hrs in my environment, in the middle of summer, without the pumps, with only a little droop. I attribute it to my mostly sealed system maintaining internal moisture. I've also learned enough about nutes that i don't have to listen to advice from others anymore. I just needed the hands on learning, along with everything I've read to fully understand it.
I'm guessing I'm gonna see just under a LB out of this run. Hoping with improvements and newfound knowledge to at least double that next time.