What are the steps to properly operate the H2O extinguisher?

To properly operate the H2O extinguisher, one should turn the handle fully clockwise to ensure that the extinguisher is activated and ready for use. It's crucial to aim at the base of the fire because that is where the fuel source is located; extinguishing the flames at the base effectively cuts off the fire's supply of fuel, enhancing the chances of successfully putting it out. After aiming, pressing the lever releases the water, and sweeping the extinguisher from side to side distributes the water over the fire, covering it thoroughly and preventing re-ignition. This method ensures an effective application of the water, allowing the extinguisher to work as intended against the fire.