What should be done with water or steam fire extinguishers before inspection?

For water or steam fire extinguishers, it is essential that they are discharged and disassembled before inspection to ensure they are functioning effectively and safely. Discharging the extinguisher allows for the verification of its operational capability, ensuring that it will release the extinguishing agent properly when needed. Disassembling the unit provides an opportunity to inspect internal components for wear, corrosion, or any other issues that could impede performance.

Cleaning alone does not suffice, as the internal mechanisms must also be checked to confirm that they remain in good condition. Simply replacing the extinguisher entirely would not be practical or necessary unless it is found to be defective beyond repair during the inspection. Full testing, while important, typically refers to a thorough evaluation but involves steps such as discharging and possibly recharging rather than a standalone action. Thus, discharging and disassembling is a comprehensive process that ensures readiness and safety for continued use.