I have 6 “sections” each with a common wire that leads back to the controller. My intent was to place an in-line 1A fuse on each of those common wires such that if any of the valves on that section shorts, it knocks out the section and not the controller. But I agree that adding a fuse for each of the valves is the right way to go – I just hope I can fit all the fuses in the enclosure 🙂