How to Turn Off the Main Water Supply to Your House

## Why You Might Need to Turn Off the Water There are several scenarios where you might need to turn off the main water supply: - **Plumbing Repairs**: Fixing leaks, replacing fixtures, or installing new appliances. - **Emergencies**: Burst pipes or major leaks. - **Extended Absences**: Preventing potential water damage while you're away. ## Locating the Main Water Shut-Off Valve The main shut-off valve is typically found in one of these locations: * In colder climates: Usually found in the basement or crawl space, on the wall facing the street * In warmer climates: Often located outside near the property line or perimeter of the house * In some homes: Found in the garage or utility room > Pro Tip: Take time to locate your shutoff valve before an emergency occurs. Mark it with a bright tag or label for easy identification. ## Types of Shut-Off Valves There are two common types of shut-off valves: ### Gate Valve * Looks like a wheel * Requires multiple full turns to shut off * More prone to sticking due to infrequent use ### Ball Valve * Features a straight lever handle * Operates with a quarter-turn * Generally more reliable than gate valves ## Steps to Turn Off the Main Water Supply 1. Locate the main shutoff valve 2. Clear the area around the valve for easy access 3. For gate valves: Turn the wheel clockwise until it stops (don't force it) 4. For ball valves: Turn the lever 90 degrees so it's perpendicular to the pipe 5. Test by turning on a faucet at the lowest point in your house ## Additional Considerations ### Before Shutting Off Water * Inform all household members * Fill some containers with water for essential use * Take photos of the valve position for reference ### After Shutting Off Water * Open outdoor spigots to drain remaining water * Turn off water heater to prevent damage * Document the date of shutoff for maintenance records ## Recommended Maintenance Schedule | Task | Frequency | Purpose | |------|-----------|----------| | Test valve operation | Every 6 months | Prevent seizing | | Inspect for leaks | Monthly | Early problem detection | | Update valve tag/label | Yearly | Ensure visibility | | Professional inspection | Every 2-3 years | Preventive maintenance | ## When to Contact a Professional Contact a licensed plumber if you encounter any of these situations: * Unable to locate the shutoff valve * Valve appears corroded or damaged * Valve won't turn or is stuck * Water continues flowing after shutoff For more detailed information about home plumbing systems, visit the [International Association of Plumbing and Mechanical Officials](https://iapmo.org/) website or resources like [This Old House](https://www.thisoldhouse.com/) and [Family Handyman](https://www.familyhandyman.com/?srsltid=AfmBOoqhyEHOqNs6xqZRCh_Emfjk2k3XzTluQihUMIAl-jFUrkpnCwZ8). Consider installing a [water shut-off system](https://www.flologic.com/shop/?srsltid=AfmBOopgSoJHX5nSOha27CJnDtqL3WorCguQ3zgS12y4xs3xFYHvYwwR) that can automatically shut off the water supply in case of a leak or burst pipe.

How to Turn Off the Main Water Supply to Your House

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