How often do pump tank calcium chloride based antifreeze types of extinguishers need to be recharged?

Pump tank calcium chloride based antifreeze extinguishers typically need to be recharged annually to ensure they maintain their effectiveness and are in compliance with safety regulations. This annual recharge helps to replenish the extinguishing agent and tests the integrity of the system, ensuring that it is ready for use in an emergency situation. Regular maintenance, including annual recharging, is crucial for all fire extinguishers to ensure they function effectively when needed, reflecting the standards and guidelines established for fire safety equipment. This also minimizes the risk of malfunction due to degradation of the extinguishing agent over time.