To remove stubborn calcium and lime mineral buildup encrusting faucet handles and internal parts, start by shutting off the water supply valves under the sink and removing the handle. Soak the calcified components by wrapping them in a clean rag saturated with warm white vinegar for 30 to 45 minutes. The mild acetic acid in vinegar dissolves hard water crust naturally without damaging chrome or brass finishes. Callout type="warning" title="Hygiene Warning": Shut off the water supply valves under the sink before starting repairs. Verification: Scrub away softened mineral deposits with an old toothbrush and rinse thoroughly with clean water.
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