Solution 1: Baking soda and vinegar. Pour 1⁄2 cup baking soda down the drain, followed by 1⁄2 cup white vinegar. Let sit for 30 minutes to an hour. Repeat if necessary.
Solution 2: If you suspect grease is the culprit, pour 1 cup baking soda and 1⁄2 cup salt down the drain, followed by 2 cups boiling water.
Solution 3: Use a plunger to unclog the pipe. If it's in a sink, cover the overflow hole with a towel. Coat the lip of the plunger with petroleum jelly (for a better seal) and cover the entire drain opening with the plunger. If there isn't enough standing water to cover the rubber part of the plunger, add more. Plunge away. The back-and-forth movement of the water should loosen the clog.
Solution 4: Use a wire coat hanger. Unbend the hanger and form a small hook at the end. Snake it down the drain to break or push through the clog.
This article originally appeared on www.bhg.com.