How is pressure used in flushing toilets?

In flushing toilets, pressure plays a crucial role in the removal of waste. When the toilet handle is pressed, a valve opens, allowing water from the tank to rush into the bowl. This sudden influx of water increases the pressure in the bowl, forcing waste and water down the drain through the siphon effect. Once the tank is empty, the valve closes, and gravity helps refill the tank for the next flush.