Vinegar alone is too weak to dissolve a clog. Baking soda alone is inert. But together? They create a dynamic, scrubbing, pressurized foam that attacks the clog from every angle.
: Pour a gallon of hot (not boiling) water into the bowl from waist height to add pressure. using baking soda to unclog toilet
Sometimes, the classic volcano needs a tweak. Vinegar alone is too weak to dissolve a clog