To proactively protect your household water supply pipes from freezing during severe winter weather, you must insulate vulnerable lines and maintain steady warmth. Wrap all exposed pipes located in unheated areas—such as crawlspaces, attics, garages, and exterior walls—with foam pipe insulation sleeves or heat tape. During severe sub-freezing cold snaps, open cabinet doors beneath sinks to let warm indoor air circulate around plumbing, and let faucets drip slightly to maintain continuous water movement, preventing ice crystals from forming. Verification: Disconnect garden hoses and shut off exterior hose bib supply valves before winter arrives.
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