Good Morning! I am new to goats, just started this summer with my herd and all 6 are under a year old. Last night the temps dropped down to 26 degrees and our water frozen both goat pens. I am trying to find the best solution as running an electrical cord is not an option since my American Staffordshire Terrier WILL chew up the cord. I have been looking at battery powered filters but I don’t know a lot about that. I also was looking at the hacks with old tires and a container inside of them...I’m leaning towards this idea as I have 4 old tires laying around so I could make 2 sets of these types of water troughs. Ideas and suggestions please?