I’ve just installed a Rachio (v2). In setting up the zones, I noticed that the projected watering times are much longer than anything I ever did with my original controller (> 2.5 hours per zone vs 15 - 20 minutes). These are for zones that are all shrubs, on level loam, in the San Francisco area, with nothing but emitters (drip system).
As the original controller’s watering times worked well (i.e., my plants and trees are all thriving), I don’t think I need the watering intensity Rachio is recommending. I realize I could set up a “dumb” (e.g., even/odd) schedule. But I’m curious as to why the smart scheduler is planning to run so long.
I saw reference in another post to creating a custom nozzle type. I wonder if the problem is I have “bigger” drippers/emitters installed? They’re all at least 1 gallon per hour, and some of them are 2 gph. How hard is it to create and use a custom nozzle type?