If Drano fails to clear your bathtub clog, do not immediately use a different chemical drain cleaner, as mixing chemicals can cause dangerous chemical reactions or splattering. Instead, wait several hours, bail out any remaining standing water safely, and use a mechanical hand-cranked drain snake or a manual plunger to physically break apart and extract the remaining hair blockage. Callout type="warning" title="Hygiene Warning": Wear rubber gloves and eye protection to avoid contact with residual caustic liquid in the tub. Verification: Run warm tap water to confirm the mechanical clearing restored drainage.
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