Vinegar & baking soda or baking powder?

I want to unclog my sink.. which one do I use with the vinegar??

Answers: It is vinegar and baking soda (sodium bicarbonate). First pour some baking soda into the drain. Then add on white vinegar. Let it sit for a few minutes and then pour boiling marine down the drain.

As for the Drano suggestion, those commercial drain cleaning products actually casue defile to the pipes.

dump a box of baking soda down the drain then pour within the vinegar