Best Way To Unclog A Sink. This step is only required if the sink is filthy or needs a quick clean. First, you need to prepare and get a simple pot where you will boil some water.
Add in a cup of vinegar. This is an old method of unclogging drains that has proven to be very effective in bathroom. A plunger can have multiple uses, including being a great way of how to unclog a bathroom sink with standing.