There is a case that you have slow bathroom sink drain problem. Before fixing the sink, it is better for you to make sure about the cause of this problem. Actually, there are several causes which might made slow bathroom sink drain problem.
There is a problem with the piping system
What you need to check when you have slow bathroom sink drain problem is the pipes. There is a big possibility that there is a problem with the piping system. In specific, the pipes are too old and as the result, it starts to deteriorate.
Something stuck within the pipes
While checking the condition of the pipes, it is also important to make sure that there is no strange object there. This is because there is a case that there is something stuck within the pipe. This object makes your bathroom sink draining slowly.
A problem with main drain line
If there is no problem with the piping system as well as there is no something stuck within the pipe, it means you have to check the main drain line. It is also possible that the problem is caused by intruding roots. Intruding roots are in main drain line.
It is okay if you want to call a professional plumber, but it is only a minor problem, it is good to fix it by yourself. For example, sometimes what you have to do is cleaning the pipe. The problem is only about the dirty pipe. What you have to do is using several acidic ingredients such as vinegar, salt, lemon juice and borax to clean the pipe.
How about if there is something stuck within the pipe? There is no other way except removing the object. You can create a small plunger. Just use this small plunger to pull the object which stuck within the pipe. Even, if you want to make it fast, you can just use hanger to pull the object. Just take all the objects and start to run the water. For those who want to treat this problem in very simple way, you can just use hot water. Just directly pour the hot water into the drain pipe and wait for a few minutes. Just try to clean the drain pipe and then try to open the sink. Hopefully, by using such kind of simple treatment, you can solve the slow bathroom sink drain problem. If there is no changing after those treatments, you can call plumber for further sophisticated treatment.