Baking Soda In Drain _verified_ [UPDATED]

Pour ½ cup of white vinegar down the drain. Immediately cover the drain with a drain plug or a wet rag. This is a crucial step often missed. You want the pressure of the expanding gas to push down into the pipe, not up into your bathroom. You will hear a fizzing sound; let this work for 5 to 10 minutes.

She was pouring herself a victory cup of tea when she heard it. A slow, thick glug-glug-glug from the bathroom. The one drain she hadn't treated. baking soda in drain