You must not rely on pipe cleaners to unclog the sink in your bathroom. Besides being slow, these cleaners contain harsh chemicals that can harm you if you come in contact with the liquid, or may damage the pipes.
Instead, take the plunger and get ready to unclog the sink in a minute or less.
1. Open the faucet to fill the sink with about 1 inch (2.54 cm) of water, if not already contains at least that amount of standing water. The water pressure is needed to provide the plug out of the pipes and is essential to uncover the pipe.
2. Take the handle and place the plunger covering the sink drain. Tilt the handle to the side so that a part of the plunger rubber to be above the water. This will leave out any air trapped when the plunger submerge.
3. Place the plunger firmly on the drain.
4. Repeatedly press the plunger down and up for about 15 seconds, or until the water drains out, whichever comes first. If there is still standing water in the sink after using the plunger for 15 seconds, re-fill it with 1 inch (2.54 cm) of water if some of the water was drained and repeat with the plunger for another 15 seconds.
5. Check the water level and use the plunger again every 15 seconds until the drain is uncovered, which usually takes four tries or less.