The answer to 'how does toilet work' is that a toilet uses water pressure and gravity to flush waste and refill the bowl. When you flush the toilet, a flapper at the bottom of the tank opens, allowing water to flow into the bowl. The weight of the water pushes the waste through the trap and into the sewage system. As the tank empties, the flapper closes, and a fill valve automatically refills the tank with fresh water for the next flush.
The toilet's design uses simple mechanical principles to provide an efficient way to remove waste from the home. The tank, bowl, and connecting parts work together to create suction and water flow that cleans the bowl and removes waste.