Quick answer
Where is my main water shut-off valve?
Updated
Last updated (10:37 PM)
How to find and shut off your main water valve.
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Where the valve is, by house type
Slab foundation
Look under the kitchen sink, in a garage wall box, or outside near the hose bib closest to the street.
Pier and beam / basement
Follow the supply line where it enters — often a utility closet or basement wall.
Meter box
If there is no house valve, use the meter on the house side. Need a meter key for many lids.
Handle types
Round wheel = gate valve (several clockwise turns). Lever = ball valve (quarter turn).
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Related questions
Clockwise to close. Several full turns on a wheel; a quarter turn on a lever.
Stop. Forcing an old gate valve can snap the stem and turn a contained leak into an open main. Call a plumber.
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