Can I have 3 Generation controllers and 3 flow metes running at the same time.
Each R3 supports one flow meter so technically this should work, without knowing the layout of your irrigation system.
I wanted to put three along side each other with 16" runs on each end and then converging back into one line, with same configuration on the input side.
@jsore - is there going to be a master valve before or after the flow meter to the Rachio associated with that flow meter so that the water is only flowing through one flow meter at a time?