BOATsmart! Base de connaissances du Canada 

A dead fire extinguisher is useless. Monthly inspections are required to keep fire extinguishers in proper working order. When inspecting a fire extinguisher you should:

• Check the gauge to ensure the fire extinguisher is fully charged
• Look at the seals and hoses (if so equipped) and replace any that are cracked or broken
• Weigh extinguishers to make sure they meet the minimum weight levels stated on the label and recharge them if they contain less than 90% of their rated capacity