You mean to keep it from doing this....... When the weather gets like this...... Well, every morning that it's like ^ we do this...... I'm dead serious! We had a heater in there and the water in the bucket never froze. But the little dribbles that remained in the cup after they drank DID freeze. When that water froze it expanded. When it expanded it put pressure on the little triggers in the nipples, making more water ooze out and filling them to overflowing. Then we got icicles from the nipple to the floor. So anytime our temps got to that minus 17 degrees or so, we'd get up, start the coffee, put on our winter duds, and take the heat gun to thaw the nipples and melt the icicles. That's what Ken is doing in the last picture. He'd already melted the nipple and the area around it, heat dried it, and was working on the icicle/skating pond part of it. Now we didn't have that problem if we were at like 5 or 10 below for some reason, but once we hit the teens it was, "Break out the heat gun, honey, while I start the coffee!" It seems like a bigger deal than it was - the chickens were fine waiting for that first drink of the morning, and thawing only took a couple of minutes. While he did that I checked everyone over, made sure food was full, straw in the nest boxes was nice and fluffy for them, and by that time he was done. So we were out doing morning chores anyway - we just did them earlier in the day than normal. Like Deb just said, there are tons of threads out there that talk about keeping those nipples thawed. Some folks have had more success than we did. But you know, looking back on the entire winter, it really wasn't any worse than any other thing we have to during the season, and spending a few minutes with heat gun still beat the heck out of lugging buckets of water out and carrying frozen ones back in, so it was a pretty good tradeoff!