Why is there a pipe extending to the overflow at the water inlet of the toilet tank, and some do not

The pipe at the water inlet of the toilet tank is called the water supply pipe, which is used for the water supply seal of the seat when the water enters the water tank after the toilet is flushed once, after the toilet water seal is lowered. The water seal of the standard toilet should not be less than 5CM, and after flushing the water once, the water seal is low, so it is necessary to replenish the water.

Flush toilets do not have a water pipe, while siphon toilets have water pipes. The differences are as follows:

1. The flushing capacity is different.

The direct-flush toilet does not have a backflow bend and adopts a straight flush, which is easy to flush down larger dirt and is not easy to cause blockage during the flushing process. The siphon toilet is easier to flush off the dirt that adheres to the surface of the toilet, and the flushing effect is more thorough.

2. Different water-saving capabilities.

The flush toilet is to use the impulse of the water flow to discharge the dirt in the toilet, the general pool wall is steeper, the water storage area is smaller, so that the water is concentrated, the water force around the circle is increased, and the water is used less. Siphon toilets have at least 8 liters of water each time, which is more water-intensive.

3. The anti-odor ability is different.

The flush pipe is simple, the path is short, and the neck is thick, so it is easy to smell bad. The siphon toilet has a long path and an S-curved pipe, which is not easy to smell.

Each tank has it, but some have a pipe stuck in it, while others don't have a pipe and drain directly into the tank. The right thing is to connect to the overflow. When there is a problem with the inlet valve:

1. When the water level reaches a certain height, the water can be discharged directly when it is connected to the overflow port. 2. If the pipe is not connected to the overflow, the water can only be discharged when the water level is higher than the overflow.

That pipe is called the water replenishment pipe, which is used for the water supply seal of the seat when the water tank is filled after the toilet flushes once, and the toilet water seal is lowered. The water seal of the national standard toilet cannot be less than 5CM, and after flushing the water once, the water seal is low, and the water must be replenished. Generally speaking, flush toilets do not have a water pipe, and siphon toilets have water pipes.

However, some siphon-type toilets have fast siphons and more backwater, and you can also make up enough water for the toilet seal. I won't talk about the more complex principles, but if you want to know more, you can ask me questions.

The new toilet water supply system has a water supply pipe "white plastic pipe", and the old-fashioned one is a straight discharge overflow to prevent the water level in the water tank from being too high and flowing water out of the tank.