We just had a new backyard put in by a contractor with 20+ years of experience. Overall, he did a very nice job, but apparently the Rain Bird timer that came with our house is a new model and it gave him some trouble when hooking up the new sprinklers/drip. As such, he installed a temporary Rain Bird -- one he knew how to use -- to run the sprinklers for a few days until he got the newer Rain Bird figured out, which he did today.
When he unhooked the older Rain Bird, he left the wires exposed by the manifold in the backyard:
This is how they're hooked up to the manifold in the front (only the brown/white wire is attached, as indicated by the red arrow):
In the walk through today, my wife asked about the wires, and he told her that they're waterproof, and that we should just leave them there.
Aside from the fact that it just looks sloppy, my question is:
- Is he telling the truth? Is there really no harm in leaving those wires exposed the way they are?
- Is the solution as simple as disconnecting the brown/white wire and discarding the now-unused wires?
I understand that it's difficult for you to give a definitive answer with this limited amount of information, but your input is appreciated.