From waist height, pour the hot water steadily into the bowl. Aim for the bottom drain hole. The force and heat can dissolve and dislodge soft clogs (toilet paper, soap scum, grease).
Heat water in a kettle or pot until it’s hot but not boiling. Let it sit for 30 seconds after boiling if you must use boiled water. how to unclog a toilet with hot water
Squeeze a generous amount (about ¼ cup) of dish soap into the bowl. The soap lubricates the pipes and helps break down the clog. From waist height, pour the hot water steadily into the bowl