I have programming skills, but I also have a full-time job that gives me no free time to attempt writing code for this project. If I am going to write code, then I may as well write a MODBUS or BACnet program so that I can integrate the irrigation into a bunch of other building system controls.
Can master zones share resources? I need all four water sources to be available to all emitters, and to be able to run a transfer pump between water sources.