How to Shut Off Water Quickly in an Emergency

1. Locate the Main Shut-Off Valve

The main shut-off valve is usually where your water line enters the house — often in the basement, garage, utility room, or near the foundation wall.
In some homes, it may be outside near the meter or under a utility lid.
There may also be isolation valves for individual fixtures (sink, toilet, washing machine) which let you cut off water to just one area instead of the whole house.

2. Know the Types of Valves & How to Operate Them

Valve Type	Appearance	How to Turn Off
Ball valve	Lever handle	Turn lever 90° so it is perpendicular to pipe
Gate valve (wheel type)	Round wheel handle	Rotate clockwise (right) until it stops
Multi-turn / globe valves	Wheel / knob	Turn clockwise until closed

3. Act Quickly, But Smoothly

When shutting off, turn smoothly and firmly — avoid forcing a valve that’s stuck, as this can break it.
After the main is closed, open a faucet to release remaining pressure and drain residual water from the pipes.
To restore service, reopen valves slowly to avoid pressure surges that may stress plumbing joints.

4. Practice & Label

Walk through your home and practice finding and operating the shut off valve before an emergency happens.
Label the valve (e.g. “Main Water Shut-off”) so anyone in the house can find it.
Keep a flashlight nearby in case the valve location is in a dark area.

5. When to Call a Professional

If the valve is corroded, stiff, or you’re unsure which valve to turn, don’t hesitate to call a plumbing expert. In emergency situations, they can help safely shut off water and fix the underlying problem.

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