We have an old house with old drains and our kitchen sink is always getting clogged up. The first time it happened my husband was out of town on a business trip and I spent hours and hours trying to get the double sink unclogged. Drano, baking soda and vinegar or just plunging it with one plunger did not get the kitchen sink unclogged. So it took a lot of time but I finally have found a fail proof way to get it unclogged that I can do by myself because I promise you that it only happens when there is no man around.
Unclogging a double sink is very easy and all you need is 2 plungers. That’s right, next time you’re at the super center just pick up another plunger.
To unclog it place one plunger on the side that has the food disposal, usually on the left side. This side will just be for making a tight seal that is easy to hold by yourself. You will not plunge this side. You do need to hold the plunger down to make a tight seal and then place enough water in that side of the sink to barely cover the top of the plunger.
Now using your other hand, plunge the other side while maintaining the seal on the other plunger. You need to make sure that there is enough water in both sides to cover the top of the plungers.
Plunge it hard while maintaining the seal on the other side and within a few minutes you should have a totally clog free sink.
There you go! Now go clog your sink to try it out! (just kidding).