So, after some hesitation, I ordered a six-pack of chicken nipples after growing tired of changing dirty water several times a day. They arrived in the post today, and I immediately turned a pail with a lid into a new watered, with three nipples on the bottom. It took my chickens all of thirty seconds o investigate and figure it out. Amazing. Now their water will stay clean, and I won't spend so much time going back and oath to the water hose. I can't recommend Chicken Nipples enough.