I don't see the point in that.I too am trying to figure this out. I am in WNY so worry about winter is big for me. I read somewhere to paint barrels black as they will hold heat better to keep from freezing. Anyone ever tried this. It's about 75' from my water source to the chicken pen. So looking for good ideas.
I use the black rubber bowls. They are already black, and you can kick them about without them breaking.