Drain Provisions allow drainage of which component?

• A. Pressure gauge connections.
• B. Hydrants.
• C. Air lines.
• D. Concrete foundations.

Answer: (A)

Drain provisions are provided to allow water to be drained from specific parts of the sprinkler system for testing and maintenance. The pressure gauge connection is the component that needs a drain so you can purge the gauge line and depressurize the line as needed, ensuring accurate pressure readings and safe service. Hydrants, air lines, and concrete foundations aren’t the parts targeted by these drain provisions in typical residential sprinkler practices; hydrants have their own drainage considerations, air lines are purged during testing, and foundations aren’t drainage points.