I have the set up 2-- 4'x8' tables the pump i have blasts out a ton of water in 60 seconds. Is it ok to have the drainage from the tables go back into my reservoir? I am using all organic ferts. Changing the res every week. ( fresh ro water and ferts). If I set the timer to a lower time on-- say 30 seconds by the time the pump builds pressure the cycle cuts off and no water comes out of the drippers.
We need more information mate. What type of medium are you using? If its expanded clay or perlite then yes i would reccoment letting your runoff run back into your rez. if its coco you can run to waste or recycle but personally i prefer to run to waste.