Hi All, I was at a feed store recently and saw a couple of different types of watering nipples. I almost jumped and bought them, until I realized that they were shelved with supplies for pigs and goats. They were stainless steel, and there was a steel 'stop' behind the lever that an animal would push to get water. The packaging was not labelled in a way that would help me know their intended use. They also seemed to take a bit of pressure to work, maybe more than would be good for a chicken. Is there more than one type of nipple system out there, or can any watering nipple be used with chicks?