I can confirm that you can have Two sprinkler controllers on the same app/same account. So if you need more than 8 zones you can just add another controller . Mine has 6 zones (Front yard ) and 7 zones ( back yard).
How did you wire the 2nd controller? I’ve got 9 zones in a Hunter system that I’m replacing. If I add a 2nd Wyze to handle zone 9 how is the common pulled if it is in the Wyze #1 controller? I’m willing to leave zone #9 in the Hunter System and add my new Wyze for zones 1-8. Just not sure if and how it would be done.
I had two sets of wires for the front and back controllers. Both are separate and in no way connected.
Does one subscription cover both? Does the phone app expect two? What does wyze say?