A mixture of equal parts vinegar, salt, and baking soda may help open up a slow-draining sink:
- Pour the solution down drain.
- Let it sit for 1 hour.
- Then pour boiling or very hot tap water down the drain.
To clear a minor sink clog:
- Use a mixture of 1/2 cup baking soda and 1/2 cup vinegar.
- Let it stand for 3 hours.
- Flush with hot water.