I also got Rachio for drip irrigation. I usually don’t water our lawn since it’s wooded etc. I think this year will be my 3rd year with it. I tried to be very scientific w calculators etc but it just doesn’t work. I found the best way is to use the fixed schedules w rain skips etc. I still like Rachio for drip because it can indicate how saturated the soil is etc and for rain skips. God luck
