
This shows the top of the water tower that I built to supply my chickens with water. You can see the whole series of photos showing how I built it at http://www.southernagrarian.com/a-water-tower-for-the-chickens/
Since our well water has such a high mineral content, anything that uses small metal valves will be ruined in a matter of months. This tower supplies the plastic drinker cups, and that works very well for this situation.