What does it mean to have two holes under the toilet

A siphon toilet with two holes should be a jet siphon toilet.

The siphon toilet has been further improved, a jet secondary channel is added at the bottom of the toilet, aimed at the center of the sewage outlet, when flushing, a part of the water flows out from the water hole around the toilet circle, and a part is sprayed out by the jet port, and this kind of toilet is on the basis of siphon with the help of a larger water flow impulse, and the dirt is quickly flushed away.

Its biggest advantage is that the flushing noise is small, which is called mute. In terms of flushing capacity, the siphon type is easy to flush off the dirt that adheres to the surface of the toilet, because the water retention of the siphon is higher, and the anti-odor effect is better than that of the direct flush type.

However, the disadvantages will also be obvious: when flushing the siphon toilet, the water must be released to a very high water surface, and then the dirt will be flushed down, so it is necessary to have a certain amount of water to achieve the purpose of flushing, and at least 8 to 9 liters of water should be used each time, which is relatively water-intensive. The diameter of the siphon drainage pipe is about 56 cm, which is easy to block when flushing, so the toilet paper cannot be thrown directly in the toilet.

There is a complete pipe in the siphon toilet with an inverted "S" in the shape of a side-to-side shape, and the slope of the pool wall is gentle, and the noise problem has been improved; It has the characteristics of strong sewage discharge capacity and large clean surface, so the vast majority of toilets, especially the conjoined ones, are siphon type.

There are two standards for the location of the floor drain when decorating, one is farther away from the wall and the other is closer.

There are two holes under the toilet bowl to match both standards.