Gauges on dry, preaction, and deluge systems shall be inspected?

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

Answer: (A)

Gauges on dry, preaction, and deluge systems should be inspected monthly. The key idea is that these systems rely on a charged state—air or nitrogen in the dry line, or the charged condition of the system in preaction/deluge setups—and readings can change due to leaks, valve movement, or gauge drift. Monthly checks help ensure the gauge is readable, accurate, and indicating the correct pressure, and that the system is properly charged and ready to function. During the inspection, confirm the gauge shows a valid pressure, the face is legible, connections are tight, and there are no signs of tampering or damage. If a pressure loss or a stuck gauge is found, address it promptly to maintain readiness.