Why does the toilet flush never come out full? Where is the water always there? What is the principl

It is generally float-type, and when the water surface rises, the float will also rise, and eventually the float will block the water outlet and will no longer continue to enter the water.

The flush toilet is composed of two parts, the upper is the water storage tank, also known as the high water tank, the float valve or float box controls the amount of water storage, the water storage is suitable to be able to completely flush away the dirt, and the amount of water is too large to cause unnecessary waste.

Under the urinal is an S-shaped pipe, the S-shaped pipe has the function of water storage and deodorization, and the water storage surface in the urinal is level with the bottom of the S-shaped pipe.

I remember that the junior high school teacher talked about the principle of the communicator, in order to prevent bacteria from entering the air.

This is called a trap.

Under the water outlet of the squatting toilet, there is a "U" shaped water outlet pipe, which will store a part of the water in the middle, so that the odor will be cut off.

The toilet has its own trap.