I live in Michigan right near Lake Michigan so it gets COLD here in the winters!!! I'm stressing out about how to water my 5 chickens and have been working on this for MONTHS!!!!!!! This will be my first winter with chickens. I have a 4'x4'x4' coop and a run that's 8'x3'x3' (so it's not big and I can't fit in it). In March I made the "Cookie tin waterer" that people rave about. The one thing that I hate about it is that I will need to refill it pretty often and they probably will mess in it and then I have to fill it even more often. I've read boat loads of threads that say don't put water in the coop because of humidity and frost-bite. So I would love to modify my "summer-time" 5 gallon bucket waterer that uses nipples (see pictures below). What I'm wondering..... Since I only have 5 chickens could I just make a new 5 gallon bucket waterer and run about a 6" pvc pipe off the bottom (or preferably the side) with just 1 nipple. I'd set the bucket on a couple patio bricks to keep it off the ground, or possibly and 8" standard concrete block). If I put a submersible aquarium heater in the bucket, and a "92 GPH Miniature Submersible Fountain Pump" (from Harbor freight for $5.99) would this work well enough to keep the water moving and warm? I need it to also keep the water in the 6" piece of pvc and the nipple from freezing while it's outside in my "3 mil plastic" covered run. Do you think this could work and the water & nipple not freeze? I also need to do this a inexpensive as possible! I should also mention that I CAN'T hang this in my run. I will have to sit on bricks or blocks. The first picture is my "vision". The other pictures is my "summer time" waterer that has worked perfectly and I only need to fill about one time per month. Thank you!!!!!!!