Thank you for your reply @tmcgahey! Does that mean I can install the wireless flow sensor after the main cutoff valve coming from the street? (Picture 3)
I assume I would have to add 3 elbows and a 12-18" section of PVC to install the flow meter at.
@robertokc - I am not familiar with a Pressure Vacuum breaker but I will take a look at some other threads to see what you mean. Overall my goal would be to have the lowest cost installation possible, so if I can leave my anti siphon irrigation valves in place (they still work) that would be great.
PS - All zones have the Anti-siphon irrigation valves. I also plan to investigate where the pvc leads after the cutoff valve, if it goes under the house through the crawlspace I could potentially install the flow sensor there.