How to turn on a gas geyser?

To turn on a gas geyser, first make sure the gas supply is on. Then, find the ignition switch, usually located on the control panel. Turn the dial to the "pilot" position and press the ignitor button. Hold the button for 30 seconds until the pilot light ignites. After that, switch the dial to the "on" position, and your gas geyser should start heating the water.