What is the first step in the operation of a water glycol extinguisher?

The first step in the operation of a water glycol extinguisher is to twist the handle clockwise as far as possible. This action is crucial because it opens the valve and allows the extinguishing agent to flow out of the extinguisher. Properly preparing the extinguisher by opening the valve ensures that the user can effectively discharge the foam to extinguish the fire.

For a water glycol extinguisher, which is designed to combat specific types of fires, ensuring the valve is fully opened is essential for a successful operation. The other procedures, such as holding the bottle in a certain position, pressing the trigger, or testing the squirt, come after the handle has been twisted to initiate operation. The sequence of these actions is critical for optimal use and safety while handling fire extinguishers.