Reviewed guide
How to Shut Off the Main Water Supply When It Is Safe
Learn when and how to use a verified owner-side main water shutoff, when to stop, and who to call if the route, valve, or meter hardware is unsafe.
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Water Shutoffs
Understand household water controls and when not to approach them.
Safety boundary
Recognition, evacuation, safe shutoff only when accessible, loss control, documentation, and referral. For immediate danger, leave the area and contact emergency services or the appropriate utility. Do not approach energized, contaminated, unstable, or otherwise hazardous areas.