Very sorry to hear about your problems Pam. Have you ever tried using the electric dog water bowls for the chickens? They come in a couple of sizes, but I like the 5 quart size or larger. They are around $20 at Tractor Supply or Rural King. Mine have lasted for 10 years. I just plug in 2 of them in the coop, and change the water each morning, then top them off at night. http://www.tractorsupply.com/en/store/api-all45;seasons-electric-heated-pet-bowl-5-qt

