[header] How to unclog a kitchen sink [title] Fill the sink partially full of hot water. [step] Fill the sink until it is about 1/4 to 1/2 of the way full. [title] Position the plunger over the drain. 
[step] If you have a double sink, then stuff a washcloth into the unclogged drain to ensure that the plunger's pressure is focused on the clog. [title] Work the plunger up and down quickly.