The North Carolina Cooperative Extension Service recommends providing a fresh water supply for the health of your chickens.
Water is involved in every aspect of poultry metabolism. It plays important roles in regulating body temperature, digesting food, and eliminating body wastes. At normal temperatures, poultry consume at least twice as much water as feed. When heat stress occurs, water consumption will double or quadruple. A safe and adequate supply of water is therefore essential for efficient poultry production.
The Chicken Fountain™ – Automatic Poultry Watering System