Feed a ¼‑inch snake through the drain opening past the trap. Crank it to break up or retrieve the clog. For garbage disposal clogs, use the hex key (Allen wrench) in the bottom of the unit to manually rotate the blades.
Place a bucket underneath. Unscrew the curved trap beneath the sink (hand-tight nuts usually need no tools). Clean out the sludge, food particles, or tiny utensil that fell in. Reassemble tightly. how to unclog double sink
Liquid chemical drain cleaners can damage old metal pipes and are ineffective against full clogs. Also, never pour boiling water directly into a porcelain sink—run the hot tap first to avoid cracking. Feed a ¼‑inch snake through the drain opening
Here’s a short, practical piece on the subject: Place a bucket underneath
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.
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.
A double sink requires sealing the opposite drain to create proper suction. Use a wet rag or a second plunger pressed firmly over the unused drain. Then plunge the clogged side vigorously for 20–30 seconds. The trapped air forces pressure through the shared pipe.