Okay, so my first baby chicks are scheduled to ship to me next monday. I've got the brooder built and all supplies and things that I should need for the next 12 weeks or so. But, I can't help but look to the future. We are finishing up the coop and run and are designing a water system that catches rainwater in a barrell behind the coop. But... it gets really cold here in Northeast Missouri in the winter. Weeks or months of freezing temps. I've been looking at products that heat your water to keep it from freezing. This sounds like a great idea, but costs a lot. I'm wondering if anyone has used a submerisble water pump (like you would use in an aquarium) to keep the water circulating to prevent it from freezing. I have a couple laying around that I could disinfect for chicken use. Or I think you can buy them at Wal-mart for around $5. Any thoughts???