I run 110gph for 4 plants under drip. I follow Zandor's method of lights on-flow on full (a stream) light's off 15m's on 30m's off...Thisn is what I got from Z awhile back...I think I saw where he mentioned 15 on 60 off...perhaps he has changed due to his newer system...later.peace.lw

I don't know if 2-4gph would cut it/last very long...perhaps someone else has an idea
latewood Reviewed by latewood on . What's a good flow rate (gph) for drippers? I'm building a drip system with 5" netpots. Was gonna go bigger (use 2 gallon pots) but didn't due to increased cost of whole system -- the 2 gallon pots, 8 times the amount of Hydroton, more drippers, bigger pump to run all those drippers........... Anyway, does anyone know how many drip emitters I'd need to go on each 5" netpot, and what a good flow rate is for a drip emitter? Like that won't clog often. I'm looking for the smallest flow rate that won't clog often and will keep 'em wet Rating: 5