Hi all, need to get some advice here.
A friend's apartment sinky was blocked.
The sinky is in the kitchen, the water just refused to flow through.
A plumber commented that it might be due to small stones which were stucked inside the piping.
Any remedy for this?

Sorry a bit blur. What is this plumbing snake? A kind of a rope or something to insert into the pipe?
Where can I buy one?

Great ...thanks a lot bro

Thanks alot all taikors here. Learned a lot about plumbing.
Initially my friend used some kind of liquid (unsure whether alkali base or not), but it didnt work after few times. Perhaps can get a "snake" to do the job now.