Write the next sentence in the following story.

How to clean drains
Treat your drain with white vinegar, baking soda, and hot water.
This can help eliminate odors caused by the buildup of bacteria, grease, and organic residue in your drain. It can also help clean out residue to prevent a future clog.
Pour of a cup (118 ml) of baking soda down your drain, followed by a cup (118 ml) of white vinegar. Cover or plug the drain immediately and let the mixture sit for about 15 minutes.