Clear the pipe of any visible gunk like hair or food particles.
Fill a large saucepan with water and bring it to a roiling boil.
When the water is boiling, pour 1 cup of baking soda followed by 1 cup of ammonia down the drain. Flush the drain with all of the boiling water.
If the pipe is still clogged, feed a plumber's auger (also known as a sewer snake) into the pipe until it hits the clog and will not go any further. Poke the clog with the auger, turning the handle as you do so, to break it up. As you withdraw the auger, continue to turn the handle.
Repeat the baking soda/ammonia/boiling water process (or use a chemical drain cleaner) when the auger is removed from the drain.
Things You Will Need
- Boiling water
- 1 cup baking soda
- 1 cup ammonia
- Chemical drain cleaner (like Drano)
- Plumber's auger (also called a sewer snake)
- Use a small plunger to help pull up a shallow clog.