After 30 minutes, remove the plug. Boil a second kettle of water and pour it down the drain to wash away the now-loosened debris and the salt water (the chemical byproduct of the reaction).
If your sink is completely solid (standing water that doesn’t move for hours), you need a snake or a plumber. However, if you have a slow drain—the kind where water pools around your ankles during a quick hand wash—this natural, non-toxic duo is your first line of defense.
Slowly pour 1 cup of white vinegar down the drain. Immediately cover the drain opening with your plug or a wet rag. This is critical. Sealing the drain traps the CO2 gas inside the pipe, forcing it to push down toward the clog rather than fizzing up into your sink.
You will hear rumbling, hissing, and popping sounds. This is good. Let it sit for 15 to 30 minutes . Do not run water during this time.
