The house-side shutoff valve—usually a ball valve—may be located where the pipe first enters the house or farther down the line, but it will always be located before the first appliance. If an iron ...

Turn the control valve to “on”. When the gas burner comes on, use a 50/50 dish soap/water mix to test the screw joints for air bubbles that indicate leaks. Note: When relit, the water heater pilot ...