The best way to unclog a bathroom sink is to plunge it or use a zip tie, as outlined above. If this doesn’t work, you can try ...
However, there are some jobs that are perfect for intrepid DIYers, and that includes replacing a bathroom sink ... the hole in your sink that connects to the emergency drain.
I consulted with a pair of master plumbers, Stephen Venturelli and Beau Means, about the most common types of bathroom sink ...