How to clear a slow bathroom drain

Drainage issues in the bathroom almost always trace back to a buildup of hair, soap, and skin cells collecting around the crossbars of the drain assembly. When water starts to pool in the sink or the shower basin, it is a clear signal that the pipe's internal diameter has been reduced by this debris, which will eventually lead to a complete blockage if left unaddressed. Successfully clearing a slow drain is less about chemistry and more about physical removal. You want to extract the obstruction rather than just pushing it further down the line. A properly cleared drain should pull water down rapidly without a vortex or hesitation, leaving the pipes clean and free of the slow-draining slime that usually causes these back-ups.

1. Expose the Clog. Most bathroom stoppers can be unscrewed by hand or by loosening the pivot rod nut under the sink. Pull the stopper out carefully to reveal the debris trapped in the drain opening.
2. Pull Out the Hair. Use a pair of needle-nose pliers or a plastic drain snake tool to reach into the drain pipe. Hook the hair and gunk, slowly pulling it out bit by bit until the crossbar is clear.
3. Scrub the Stopper. Scrub the stopper and the pivot rod with an old toothbrush and a mixture of mild soap and warm water. Remove any black slime or hardened soap deposits stuck to the mechanism.
4. Fizz Away Biofilm. Pour half a cup of baking soda down the drain followed by half a cup of white vinegar. Cover the drain with a rag to contain the fizzing reaction for fifteen minutes.
5. Rinse with Boiling Water. Carefully pour a kettle of boiling water down the drain to rinse away the loosened residue and vinegar mixture. Do this slowly to avoid splashing yourself.
6. Test the Drain. Reinsert the stopper into the drain and tighten the pivot rod nut under the sink until snug. Run the faucet for two minutes to ensure water drains freely.