This video contains instruction on how to make an automatic chicken watering system. It provides a no mess solution and doesn't need cleaned regularly. The system gives 10 chickens, about two weeks worth of water at a time. With the addition of some bird bath heaters, it also keeps the water from freezing in the winter. The whole system cost under $50 not including the bird bath heaters. The two heaters purchased, came from Amazon and where 45W. I just recently upgraded these to 300W heaters from Amazon as well, because the 45W ones could not keep up on the really cold days. Additionally with super cold days, even the 300W heaters in the bucket dont keep the the nipples from freezing. So I also have a heated dog bowl that gets used only when its below about 15 degrees outside.