Why do you save a little water in the toilet? If it is the principle of pressure, then the residual

Because it has a device in it that maintains a constant pressure. So the water stored is the same every time. It has nothing to do with the floor. Ordinary ones don't have this effect.

It's not pressure, it's impossible to think about numbness, it's the U-shaped pipe principle, which is designed to be similar to a U-shaped pipe to prevent the odor in the sewer from going up, forming a liquid seal and blocking the gas.

Let's first understand the structure of the toilet, there is always stagnant water in the U-shaped pipe, when the water in the toilet is higher than the U mouth, it will be discharged, and the filth will be discharged with the flow of water by the momentum of the water.

It is the water stored in the U-bend, which is used to keep the odor out of the sewer.

Regardless of height.