How often should stored pressure water extinguishers be internally examined?

Stored pressure water extinguishers should be internally examined every five years to ensure they are functioning properly and safe to use. This internal examination is crucial as it involves inspecting the extinguisher's interior for any signs of corrosion, contaminants, or damage that could hinder its performance in an emergency.

The five-year interval aligns with standards set by authorities such as the National Fire Protection Association (NFPA) and ensures that extinguishers maintain their reliability. Regular maintenance, including this internal inspection, is vital for preserving the integrity and effectiveness of the extinguisher, ultimately enhancing safety for those relying on it in case of fire emergencies.