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Question:

How exactly do I unblock my bathroom sink?

The sink in my bathroom is being blocked up. Water will rise and then slowly drain. I told the handyman and he told me to pour half a gallon of bleach down the sink. Will this work?1. I already tried using a plunger numerous times for months. 2. Why didn't the handyman check it out? I asked him and he said the bleach trick would work.

Answer:

Is it being blocked by feces or hair? If so, you need to clear that out of the drain. Water needs room to run down the pipe. Find a way to unclog your sink before you reload it with the stuff you clogged it with.
Is it being blocked by feces or hair? If so, you need to clear that out of the drain. Water needs room to run down the pipe. Find a way to unclog your sink before you reload it with the stuff you clogged it with.
I would not use bleach, this won't due anything. I would stick a clothes hanger or snake down it. You can also undo the p-trap and clean it that way if it can be unscrewed. Zep liquid heat works really well. If your drain pipes are old and made out of metal pipe you might have to remove the drain where it enters into the wall and clean the pipe with an auger or cutter bit.
The MOST likely source of the blockage is HAIR catching on the device which opens and closes the drain plug. The ONLY way to fix this is to disassemble the P trap under the sink and literally pull out the stuff caught up in the works for the drain plug. A drain cleaner will work IF the blockage material is organic, like feces, but hair is NOT, so is unaffected by a drain cleaner chemical treatment. The plunger does not work for the same reason, the hair is caught up in the mechanism. There is only ONE way, pull it apart and physically remove the hair that is causing the blockage. Something tells me the blockage has been building up over time, and you only noticed it when it finally jumped the shark and caused you inconvenience.
Bleach WILL NOT work. You need to use a DRAIN CLEANER. But BEFORE you do that do this: Under the sink, there is an S-shaped junction known as a TRAP. It fills with water, and keeps the sewer smell from coming into the house. The trap is attached to the pipes with two pipe nuts. you loosen these nuts to remove the trap. The trap often becomes filled with old soap, body oils, and hair. use a drinking glass to remove as much water as possible from the sink (dump it down the toilet). Put a bucket under the sink, Loosen the nuts, remove the trap, and clean it with your finger (use rubber gloves). At the same time, pull the stopper out of the sink, and remove any hair caught on it. Put the trap back in place, tighten the nuts, and run a large kettle of BOILING water down the sink. This IS a messy job, stinky, and ugly job. Use these digesting features as a reminder to run a commercial quality drain cleaner (like Drain-O) down the sink ONCE A MONTH so that this never happens again. Also, DO NOT just wash stray hairs down the sink. when you wash or comb your hair, take all the stray hairs out and put them in the trash basket.

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