Having family members who lived in Phoenix during the early 1960s, I know they received water delivery on a canal schedule. I’m not sure that Rachio is the best fit since you have no sprinkler system. It’s a disconnect for me. Do you hook up to the weir or gate that floods your landscape. I would just be thankful you still have flood irrigation capability in the desert. Does Salt River Project charge you for the water? Do they measure how much water you take?