How To Unclog Double Sink -

If water still won’t drain after these steps, the clog may be in the main stack. That’s when a professional with a hydro-jet or camera inspection is worth the call. But in most cases, a rag, a plunger, and a little elbow grease are all you need to reclaim your double sink.

Here’s a short, practical piece on the subject:

After plunging, pour a kettle of boiling water directly down the drain (if you have PVC pipes, let hot tap water run first to warm them). Follow with a mixture of ½ cup baking soda and 1 cup vinegar. Let it fizz for 10 minutes, then flush with more hot water. This works best on grease or soap scum, not solid debris.