The most common household substance that reacts with vinegar to help clear minor clogs is baking soda (sodium bicarbonate). When you pour baking soda down the drain followed by warm white vinegar, a vigorous acid-base chemical reaction occurs, producing carbon dioxide gas bubbles, water, and sodium acetate. While this fizzing action creates gentle agitation that helps loosen light surface scum and neutralize foul drain odors, it does not dissolve solid hair or heavy grease blockages. Verification: Flush the drain with hot water after a 20-minute soak to wash away loosened residue.
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