Wet barrel hydrants shall be inspected how often after each operation?

• A. Daily
• B. Weekly
• C. Monthly
• D. Annually

Answer: (D)

Regular, thorough maintenance keeps wet-barrel hydrants reliable. After operating a hydrant, you want to verify there are no leaks, that the drain fully clears water, and that the valve, packing, and caps are functioning properly. The formal interval used for this post-operation check in this context is annual, meaning a comprehensive inspection and service of the hydrant is performed once per year. Daily or weekly checks would be overly burdensome for every operation, and monthly checks are not the standard interval for this item. An annual inspection provides a practical, systematic way to confirm all components are in good condition and ready for service, while still allowing downtime to address any issues found.