I dump my RO system's exhaust water into a honeydew melon patch. They love it... and it got rid of the little swamp starting to form where I was draining it before.No Worries Brother! That's what this whole community is about. Sharing ideas and growin' sticky icky!
Obviously, you understand the concept but for those still scratching their heads, I'm going to run a nutrient reservoir outside the tent with an adjustable pond pump so that I can vary the pressure while I dial in the water volume I want to give to the girls. Nutrient tank pump will be connected with 1/2" hose to the riser/distro head. I use a 5 gallon bucket and time the amount of water that flows out of all the lines, testing each one individually to make sure I get volume parity throughout the system. The Distro head also has adjustable water flow so I can also fine tune from there. I test in increments and mark the water volume on the pond pump so when the girls are getting bigger I can adjust the pump and know how much increase on the water volume I'm giving them. The pond pump will be run off a timer which will give me another point of adjustability. I can set the timer to go on and off at a set time according to the volume I want to deliver. I usually just set the timer at a set time and do the adjustments from the other two points but, again, flexibility.
I'm doing a drain to waste system this run so I like to see around 20% runoff into my Dollar Store tubs. I'll hot glue vinyl tube to the inside of the tub pointing down to the floor of the tub and run each individual line into a plastic line manifold and attach the manifold to a pump on a timer. I set the timer to turn on for a few minutes 30 minutes after the Nutrient tank pump timer turns off giving the pots 30 minutes to fully drain. This will automatically drain the waste tubs and I can direct the waste into whatever flower bed that's nearby or back into the nutrient tank(not technically drain to waste anymore but you get the picture!) . No nutrient waste!!
I know....I'm nuts but years of large grow ops you get ideas.......