Sink drain gather hair, dirt, dust, bacteria and dangerous molds. See how to unclog a sink drain 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.

Pour a pot of boiling water over the drain. Add half a cup of baking soda and let it work for a few minutes.

Pour a mixture made of a cup of vinegar and a cup of very hot water over the baking soda.

Quickly put a stopper over the drain, because a chemical reaction will occur inside the pipe.

Leave the mixture act for 5-10 minutes then pour again a pot of boiling water over the drain. This is it! You’ve just unclogged and disinfected the drain!