Hi Rachio community!
With some nervousness, anxiety and excitement, I got my Gen2 installed earlier this afternoon! I had actually bought it back earlier in earlier year but since my system was winterized, I had to wait until now to get it installed.
My old sprinkler system a Rain Bird ESP Modular 7-zone system with a Rain Bird wired rain sensor. The rain sensor had two wires: a red and a black, that were connected to the "SENS" module in the system. On the Rachio, I connected the black wire to "S1" and the red wire to the "SC". I assume that is the right way to wire up the rain sensor? I also enabled the rain sensor option in the app. Unfortunately I won't be able to easily get to the rain sensor (it's connected to the edge of the gutter on the roof!), but there is a 50% change of scattered thunderstorms tomorrow. If it does rain, will the recognize that the sensor is wet and it will postpone or delay any future watering? I did set up a schedule using all the defaults; the only thing I told it was to start at 4 am and to water all zones.
Anyway, here's hoping that this Rachio will help my grass grow better while saving money on my water bill!