Create your own hygienic waterer from your desired water source. Looks like a tiny livestock water bowl, but for chickens.
Drinker cups provide fresh water to your flock, and is easier to drink from than nipple drinkers. The cup automatically fills as birds drink and the and the spring-loaded tab is bumped. Cups are designed for use with a low-pressure water source only, such as a gravity-fed system.
To install, drill a 3/8″ hole in water source and screw in cup. Provide one cup per 5 chickens.