Hi, I asked for help in such problem before but could get what satisfied me, so I'm here for your help again. I'm doing an experiment at home, I have pump with maximum flow rate of Q and maximum head of H, I'm using a pipe of D1 diameter and L1 length to connect the pump to a nozzle of D2 diameter, here is my question "for how many meters the water will be tossed from the nozzle in terms of Q, H, D1, L1, D2 ?". also I want to know if I put a solenoid valve just before the nozzle how much is the pressure if the solenoid valve is once closed and other opened. I tried to solve the problem in such a way, so please also have a look on it on this link post 1 & 4. I'm and electronic engineer and have a little background in fluid, so I'll appreciate your help.