Switch off your water heater by way of the fuel Handle valve, then change off the leading gasoline supply valve. Future, split the union among the gas lines with two wrenches, then cap the fuel line and take away the gasoline pipe in the Management valve in your water heater. https://watersofteners75432.blogdal.com/30178577/how-water-heater-services-can-save-you-time-stress-and-money