First pour the washing powder and baking soda into the blocked sewer, then pour some vinegar into it, and then poke it directly with a clothes hanger at home. The principle is that sodium bicarbonate and acetic acid react to produce carbon dioxide, and the air flow and pressure of carbon dioxide are used to clear the pipeline.

Method steps: Step 1: First, we prepare a small bowl, add an appropriate amount of baking soda to the bowl, and then add some edible salt in a 1:1 ratio, and stir them evenly.

Step 2: Then pour the mixed baking soda and salt into the kitchen sewer outlet, then pour some white vinegar into it, and then boil a pot of hot water.

Step 3: Finally, just pour the boiled hot water into the sewer, so that you can easily unclog the sewer.