My current irrigation controller is a 15 year old Hunter Pro-C with 14 zones. It is still working but I am planning to replace it this spring with an OSV3.0 AC with an extender. I am familiar with OS from my last house.
The company that services my system prefers their Hunter remote control for service over the use of a phone due to the obvious environmental issues. The OS advantages of network access, the phone app and the API for automation integration are important to me.
Is there a way we can both have what we want? Is there a way I can connect both controllers to the zones and switch between them when the service people need access?
Thanks for any ideas or advice.