Hadn't thought about buckets for water....but, I'm thinking maybe a bunch of painters buckets..about a $1 each at HD.....buy about 1/2doz and hang from ropes....then just fill one and replace the frozen one...bring the frozen one inside to thaw then reverse the processes in evening....not sure how long it takes water to freezeRe - knocking food out of the feeder, try these
1) If you use crumbles, switch to pellets.
2) Mount the feeder higher. Feeders should be no lower than the chicken's backs, and a little higher doesn't hurt as long as they can reach it.
I've had better luck with buckets for water, rather than the fountain type waterers. Mine fling bedding into the fountain types.
My permanent pens are set up now, and I want to get my automatic bell waterers set up, but I'm also worried how they will perform in freezing weather. If I get a brainstorm, I'll let you know. Otherwise, it's buckets in winter for me and mine.