I have a system I am gonna hook up to a well. The well will only be supplying the sprinklers, I have city water for rest of house. I have RainBird spray heads 1804 with VAN nozzles with 15' radius. I measured 62 psi out of well, and 10 gpm. When measuring gpm I did so through a 5/8'' garden hose. The well is disconnected so all I did was put a fitting on 3/4'' copper coming out of holding tank and attached hose to that. Would my gpm be higher if I measured direct from 3/4''? I plan on using 1'' ...
