Haley Campbell, Lecturer, The Ohio State University ATI
I’ve gotten the question a few times – ‘How can I prevent water troughs from freezing without electricity?’ Well, what a very good question indeed. First, let’s talk a little bit of chemistry. Adding salt to water when you’re boiling noodles increases the boiling point of the water, meaning the water is hotter than 212 degrees. This is the same concept with salt water and freezing point; salt water will freeze at a lower temperature than 32 degrees.
Soda bottle and salt or burying the trough are a couple of solutions
Now that the chemistry is out of the way, it brings us to our first option – making a saltwater float. Using a 2-liter soda bottle, fill it two-thirds of the way with water and add 2 cups of salt, making sure it dissolves. After tightening the cap, place it in your trough. It should float (if it doesn’t, empty a bit of the solution) and break the surface tension of the water without freezing itself. Additionally, if the trough begins to freeze, the stock may learn to press on the bottle to expose fluid water. You also can use a soccer or basketball for the same effect. Continue reading Recipes for Keeping Trough Water Running in Winter