Pour 1/2 cup of baking soda directly into the drain.
Pour 2 quarts (about 2 liters) of boiling water down the drain to flush away the dissolved material. drain unblocker homemade
Immediately follow with 1/2 cup of white vinegar . Cover the drain opening with a plug or a damp cloth to force the fizzing action downward into the pipe. Pour 1/2 cup of baking soda directly into the drain
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Wait 15–30 minutes . During this time, the chemical reaction (carbon dioxide bubbles) will break down the clog.