Remove the plunger and the plug from both sides and see if the water in the sink begins to drain after this action.
Clogged sink disposal both sides.
If the above steps fall short or you have a double sink with both sides stopped up there s a good chance that the clog is located in the trap the u shaped portion of your sink s drainage pipe.
With a double sink unit one of your sinks will house a garbage disposal.
If this does not fix the clog in your kitchen sink try doing the same action again but on the opposite sides.
In a double basin sink when it s only the disposer basin that backs up with water the likelihood is that the drain fitting on the disposer is clogged.
Fill that sink about a quarter full and plug it.
If the clog is in the disposal running it may break it up.
After that you can then turn on the disposal and at the same time run boiling the water down the disposal sink drain.
Turn on the garbage disposal.
You shouldn t use a plunger on that side of the double sink.
Now fill the other sink about a quarter full of water as well.
Activate the reset switch at the side or on the bottom of the unit.
If the disposal is not running check to see if it has overheated.
When unclogging a sink with a garbage disposal confirm that the unit is not the problem as soon as possible.
If both sides of your kitchen sink are filling up with water clog up the sink drain on the side without the disposal.
Causes of a garbage disposal clog a disposal generally has no problem grinding most food waste but it s what happens after the grinding that usually causes a clog.