First, you need to clean the cabinet out that is located under the sink so it will be easier and so that you will have a lot more area to work with the drain. When you are looking underneath the sink you will be able to see that there is about an one and a half inches of pipe that comes down and goes toward the wall. The bend in the pipe is known as a P trap, and this part constantly has water in it so that gas can not come up from the sewer and
credit: mugleyyou don’t have to smell it. The P trap is a primary area for clogs because all of stuff that goes down the sink goes through it. Taking it off is a simple as loosening the nuts that are around the pipe. You will then be able to move the pipes away and take off the P trap. You might want to have a bucket or another small container that you can put the P trap’s water in.

You should be able to see a straight pipe coming down out of the bathroom sinks bottom and a rod and nut sticking out of the back of it. If you take off the nut, you will able to take the rod right out. The rod is what lets you move the stopper for the drain up and down. After you take out the rod, you can pull the stopper out of the sink from the top. If you have a normal sink, you will have a ton of gunk and hair in it. It’s not easy to clean this, you just have to do it. Make sure that you use a cleaner to scrub it so you don’t leave any particles on it.

Take a look at every pipe to be sure there aren’t any obstructions and then you can put all the parts back. Put all the seals back, tighten the nuts by hand, shut the stopper, turn on the faucet and let the sink fill with water, and then open up the stopper. Be sure to check to see if there are any leaks. If everything is dry, you did the job right.