Comparison should include
- wet-barrel hydrant
- has water in the barrel up to the valves of each outlet
- is used in areas that are not subject to freezing temperatures
- is controlled by independent valves that allow for additional connection without main shutdown
- dry-barrel hydrant
- is used in climates with freezing temperatures
- is controlled by valve at the base that requires main shutdown to add connections.
Process/Skill Questions:
- What climates require wet-barrel hydrants?
- Where are dry-barrel hydrants located?
- What types of hydrants are present locally?