Use a Mixture of Baking Soda, Vinegar and Salt
Mix baking soda and salt in a 1:1 ratio, prepare 200ml of white vinegar.
Next, pour the mixture of baking soda and salt into the drain and then pour in the vinegar. Cover and wait about 1-2 hours. Pour more hot water into the drain to increase the ability to clean the dirt for the clogged sink.
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