At some point in time, everyone is bound to run into a clogged sink. With the amount of food, hair, soap and other stuff we send down the drain, all the household sinks will experience clogging eventually. Clogs develop in the plumbing slowly and if you can catch them while they are still close to the drain, you may be able to use a plunger. Fill the sink ¼ of the way with water and using a standard cup plunger, place the cup over the drain and push the plunger up and down with quick forceful thrusts.
If a plunger doesn’t clear out the clog, place a bucket under the sink and loosen the sink trap, which is the curved pipe at the lowest point in the plumbing under the sink. Some sink traps are equipped with a clean out plug that can be removed with a pair of pliers, but traditional sink traps may require a pipe wrench. Remove the sink trap and using a cable auger (or something long, thin and flexible like a bottle brush) check the pipes for any clogs. If you find a clog, pull it out and flush the sink with hot water for a few seconds being mindful of your bucket, and reassemble the sink trap.
If you’re still unable to remove the clog by following the steps above you can try using drain clearing chemicals according to their instructions, or seek a professional plumbers assistance.
