A question out there for any of the irrigation professionals in the community:
I have very high pressure coming into my irrigation system, and no apparent pressure control that I can find. What is the best way to install a pressure regulating device in the system? I have a pressure reducing valve on the house side, but the irrigation water splits prior to the mainline entering the house. My guess is the pressure is north of 100 psi, as I can reach that pressure in the house by increasing at the pressure reducing valve.
I have found these style inline reducing valves. Where in the system would one be installed? Just prior to the sprinkler valves? Closer to the water meter? Or are these intended for drip lines coming off of a house faucet?
I have also seen the style that attaches to the valves themselves like this from rainbird. Which would work better?
For my drip line I converted a popup head using this kit. It should reduce pressure to 30psi, but I think the incoming pressure is too high to reach that.
If I add PRS stems to my rotor zones, I think I may have the same problem with the drip line, in that the pressure will not reduce all the way down to the pressure rated on the stems.
Optimally I would like to reduce the pressure to 45psi entering the system, convert rotor zones to rotary nozzles which are optimal at 45psi, then the drip line should manage this pressure and reduce to 30psi. Just not sure the best way to approach this.
Thanks for any help