How to isolate a water heater from the main water supply?

How to isolate a water heater from the main water supply?

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How to isolate a water heater from the main water supply?

My water heater is leaking terribly and as its the weekend the local friendly plumber wants my kidney to do a call out. Ive turned the water mains off but I cant seem to isolate the water going into the waterheater. The large red knob by the water heater is turned as hard as it will go clockwise, but water still enters it when I turn the mains back on, Its a “Starkie quick recovery gas storage heater”

The valve is usually on the outlet side of the heater to prevent people from shutting water off to pressure vessel and creating dangerous condition. First, shut off the energy source. Follow the line without the valve and see if there is another valve between heater and main, not likely. You need to install a valve on the inlet[cold] side of the heater, you could get a compression valve at the home store, simply cut the line and tighten the compression fitting.

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