Maarten Smet wrote:Small section (uninsulated) will have chicken nipples. The idea is that the water in the ground will be warmed by the ground temperature, that water (as it is less dense), will float to the top into the shelter. That, combined with the insulation around most of the pipe would hopefully prevent the pipe from freezing.
Maarten
Cool idea!
I don't have experience with underground piping to prevent freezing, but I would be curious to know if this works for you!
I think it will depend on how cold your ground gets. I wonder if it will stay warm enough to keep circulation going in your pipes. Once water gets down to 4 degrees C, it becomes less dense. That's why ice floats.
I would be worried that if your pipes got below 4 degrees C and circulation stopped, then the top would freeze.
Again, I'm not experienced with piping and pumps, besides small fish tanks that never froze, but I think you could maintain circulation with a small solar or battery powered pump like you would use in a fish tank?
If electrical components are out, I wonder if you could manage a foot powered pump that the chickens themselves step on when they go to get a drink?