How To Unclog A Bathroom Sink With Baking Soda And Vinegar. The best diy solution for cleaning sink and shower drains is to use the classic mixture of baking soda and vinegar. The first thing to do is pour the boiling water into the drain to soften the pipes a bit.
Get rid of a smelly sink drain with baking soda. Use a sink stopper to plug the drain. Then dump half a cup of baking soda and let it work for several minutes.
Pour boiling water down the drain after that to help clear greasy substances.
Simply mix 1/3 cup of baking soda with 1/3 cup of vinegar in a measuring cup. Pour boiling water down the drain after that to help clear greasy substances. Rinse my drains with boiling hot water, add baking soda and let it sit. This may take time, but it will eventually clear.