You can shut off the stop valve under the sink.
or you can shut off the valve on the water heater
or you can shut off the valve next to the PRV
or you can shut off the valve to the entire house (at the meter)
If you don't have stop valves, this is a great time to go ahead and
install them now.
On Sat, 27 Nov 2004 18:37:58 +0000 (UTC), "allang"
Thanks for advice all I did expect to find a valve on the outlet from the
hot tank but not one fitted so i closed the valve on the inlet side and ran
the taps.No shut off valve fitted at the taps.Thanks anyway
Ensure that you fit an isolating valve when the water is off. New
installations have required them for years, but ancient ones might still be
Be careful if installing a valve on the output from the tank. It sounds like
you have an old style gravity system. This depends on having an open to the
air vent from the top of the tank. If you put a valve on there, it may
explode. The valve must come after the air vent has separated off. If in
doubt, just put ones near the taps.
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