SPRINKLER TALK FORUM - You Got Questions, We've Got Answers

Ok I have 12gpm and pump turns on at 40psi and off at 50.

That means that every zone must have 12gpm. Otherwise the pump turns on and off and that is not good for it. Is this correct?

If I use 8gpm of that 12 the pump turns on and off and the pressure changes from 50 to 40. I have all rotor zones that use all 12gpm .

I dont have a problem just wondering on the issue as i read people saying stuff about being under?

You must use all the gpm or you wont have a constant pressure right?? WHat is another solution to keep constant pressure??

Ok I have 12gpm and pump turns on at 40psi and off at 50.

That means that every zone must have 12gpm. Otherwise the pump turns on and off and that is not good for it. Is this correct?

If I use 8gpm of that 12 the pump turns on and off and the pressure changes from 50 to 40. I have all rotor zones that use all 12gpm .

I dont have a problem just wondering on the issue as i read people saying stuff about being under?

You must use all the gpm or you wont have a constant pressure right?? WHat is another solution to keep constant pressure??

But on my system right now it is 12gpm zones and it goes down to 40 and turns on it then levels out to about 45-48psi.

I recorrect myself the pump turns off at 50 and on at 30 psi then works it way to about 42-44psi

for the 1 zone that has 10.5 gpm it comes up to 48 psi and stops.