Already stated submersible pump with 10" well. Well rated at 40 GPM when drilled. No city water here. 3/4 hp pump. Goes to house with 1 1/2" black plastic. Broke into 1 1/2" pipe at well head with T to feed irrigation system. Goes to check valve (probably not sufficient but they installed it without one) to filter, to booster pump and that goes to the manifold where it breaks out into 21 zones with a master shut off valve. I don't have a schematic of it, I'd like to get one. I've determined that with the booster on, I get 45psi at each zone (at a sprinkler) and about 18-20psi no booster, not enough to raise the sprinklers all the way in the largest zone. Largest zone is 9 brown VAN sprinklers, 8 at 180 deg. 1 full. Smallest zone is 4 PGP rotaries with #5 red nozzles which I plan to change to gray nozzles because of the wind here. You see 4 #6 gray nozzles in the PGP gives me about 11 GPM, which may be right at the top range I have, I need to know. The 9 brown VAN sprinklers add up to almost 12 GPM. and since I only get 6 GPM out of my faucet, I wonder....
As far as I know there are no issues, but I would like to know for sure what I have so I don't waste my time/money burning up the booster pump or buying a new submersible or if I need to. I just don't trust the contractor idiot that installed this system.
As examples of why I don't trust them, they couldn't wire up the booster (one guy connected the black and white wire together at the breaker?). Plus I have 4 40 to 50' 6' wide beds and they put mostly blue or black VAN sprinklers in those beds (it looks like they just put whatever they grabbed out of their bag, there's all kinds in different places) and I have to turn them way down to keep them from over spraying everything. And as you probably know when you turn down a 15' spray head to 6', they don't work all that great. I'm thinking about changing them all to green 8' sprinklers, green because they need a bit of lift and there are some large perennials in the beds. Plus they installed all the 4" pop ups at ground level, so I've raised them as much as I can plus put the 6" extensions on them to get them up so they don't just spray the first plant and that's it.
I tried to get the contractor to change the spray heads but they wouldn't. Everytime they came out to adjust things, they had the booster pump miswired so it didn't work, and when I got it working, everything sprayed up on the siding, patio, you get the idea.
I could go on, but it's not worth it, I just want to get it working like I want without stressing my submersible or well, even if I have to do it. At least the zone valves and controller seem to be working.