An inlet water shut-off is a valve that controls water flow into a water heater or appliance. It allows you to isolate the unit for maintenance or emergencies without shutting off water to the entire home. A working shut-off helps prevent water damage during repairs or leaks.
/ˈɪnlɛt ˈwɔːtər ʃʌt ˈɔːf/
An inlet water shut-off is a valve that controls water flow into a water heater or appliance. It allows you to isolate the unit for maintenance or emergencies without shutting off water to the entire home. A working shut-off helps prevent water damage during repairs or leaks.
Why is the inlet water shut-off important?
It lets you quickly stop water flow to the appliance for repairs or leaks.
Source: The Cooling Company
Shut-off valves isolate appliances for safe maintenance.
Before flushing a water heater, the inlet shut-off valve is closed to stop incoming water and prevent flooding.
Test the shut-off valve periodically and replace it if it binds or doesn’t fully close.
“Test the shut-off valve periodically and replace it if it binds or doesn’t fully close.”
Exercising shut-off valves annually helps prevent them from seizing.
Where is the inlet shut-off valve located?
It is typically on the cold water line entering the water heater.
Can I replace a shut-off valve myself?
Some homeowners can, but a plumber ensures proper installation and sealing.
What if the valve won’t close completely?
It should be serviced or replaced to prevent leaks and emergencies.
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