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Have a gas operated water heater/tank the tank is leaking itself I have to shut off Main water about the house should I turn off the gas supply to the water tank?

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  • Yes, you should Aug 29, 2023 at 6:12

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TURN OFF THE GAS

A combustion appliance should never be running in an unloaded situation except for testing purposes. Doing so can lead to additional damage to the appliance and possibly damage to your house.

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With the main water off, it would be a good time to add shut off valves to the tank.

You then will be able to turn on the main water for the house again.

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  • My plumber did that when replacing my gas water heater last year. I heard water running. Went around the house and found the water heater leaking a lot. Fortunately, it is close to, and the floor slopes down to, a floor drain. Turned off the main water for the house (which previous plumber did many years ago because original shutoff doesn't work any more...) Eventually got a plumber (not as easy as it should be - I think there were a lot of pandemic-fueled retirements around here) and plumber installed new water heater with shutoff valves, expansion tank and all the other modern things. Aug 29, 2023 at 14:02

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