Welcome aboard, TFA! You will probably get better responses if you start a new thread about this rather than posting it here. Are you growing outdoors or will your indoor grow be left unattended for long periods? Just wondering why you're interested in a drip system. The ones I've seen with soil applications are usually run with a timer. You figure out through trial and error when and for how long the pump needs to run. A continuous drip for soil sounds like a recipe for root rot. I would suggest looking into some sort of wicking system.