get a new plug!
I really dont know
Replace it.
For problems regrading your sink you should probably call a plumber. The plumber can examine your sink and determine why it's leaking. As for the places that you can call for the same day, it depends on the area where you leave. Each company is unique in regards to the time in which they will go to fix your problem.
If you are having issues with leaking under your sink, it could be as simple as a loose pipe fitting. Try first to tighten all of the screws. If you still experience leaking, you should contact a local plumber.
There are at least 3 possible sources of the leak, depending on the design - first find what is leaking.
First, you have to drag one of the little people over to the sink and once they say "the sink is leaking!" drag him/her over to the workshop's brown cabinet. They will automatically go over to the sink and fix it!
You remove or cut out those pipes and fit new ones.
how do i fix a leaky sink
Its leaking from the hole. Trust me.
Depending where it is leaking, a toilet may need to be replaced entirely. If it is more than twenty years old, that may be a wise precaution. Leaking from the bottom may mean that you need to remove the toilet, replace the wax ring and bolt it back down. For a sink, it is all about the piping and fixtures, in most cases. I have had a cast iron sink leak, though.
you'll probably find a re-glazing kit in a good hardware store but if the sink is leaking b/c of the crack depending on the location and severity of it you might want a new sink and btw cracked porcelian is very sharp and dangerous