PH-Ignite operates on 12v AC, making the system suitable for within 5 feet of pool water. Once the fire pit is turned on, the ignitor will begin to glow. After 4 seconds the PH-Ignite system pilot valve opens and ignites the fuel. When the Flame Sensors detect a flame, after 6 seconds the system will open the main burner valve. If the system has no flame, it will shut off the gas valves and restart the ignition process 3 times. When the system senses a flame, the main burner will stay on up until the power is turned off. Should PH-Ignite fail after 3 tries, the system will need to be reset. Let us know if you're having issues, and we'll be happy to help.