Question: how to get rid of mold in your drain?
Answer: White vinegar kills mildew, and baking soda gently scours your pipes to wash the colony and any other accumulated grime out of your plumbing system. Insert the tip of a funnel into the mouth of the drain. Pour 1/2 cup of baking soda through the funnel. Pour 1 cup of distilled white vinegar down the funnel.