Where is the toilet return hole?

The return air hole of the toilet is on the side of the sewer pipe, with a diameter of about 2cm, and the direction is generally opposite to the direction of the water going from the sewer pipe.

The siphon phenomenon is actually a phenomenon formed by the gravitational pull and potential difference of water. In fact, it is to use the pressure difference of the water column to make the water rise and then flow to the low place, because the water surface of the pipeline receives different atmospheric pressures, and the water will flow from the side with high pressure to the side with low pressure, until the atmospheric pressure on both sides is equal, and the water surface in the container becomes equal height, and the water will stop moving.

A return air hole is a hole in the toilet bowl near the bottom of the return bend.

Diameter 3 cm.

The return air hole is the "big hole" in the toilet bowl There is a hole at the bottom, that is, the return air hole, the return air hole of the toilet is very small, and it is also a place that is easy to block, usually if you pour cement, lime, paint and other sewage into the flush toilet, the sediment of sewage will precipitate and agglomerate in the flush toilet, and it is easy to block the return air hole for a long time. The water discharged from the flush toilet does not form a vortex and reduces the impact force. Therefore, when using the toilet daily, you should pay more attention to the blockage of the air return hole, so as not to cause inconvenience in daily life.

In addition, if someone in the family often pulls sheep feces, it is easy to block the air return hole due to the small size of the feces. The flush toilet return hole should be checked frequently for blockages, and the blockage in the return air hole should be removed frequently.

When the toilet is unblocked and no foreign object is found, it should be considered to check whether the air return hole is normal. If a blockage is found, as long as the dirt and impurities in the air return hole are removed, the flush toilet will immediately return to normal.

Hello! The so-called air return hole is actually called an exhaust hole, which has nothing to do with your toilet. It is connected to the unit sewage main, directly to the roof of the air vent - only the air outlet is present, the dirt can be smoothly discharged downward, which is the same reason as filling the kettle with water and seeing the hot air discharge.

You can ask your upstairs and downstairs neighbors if they have the same problem, and if they have – then report it to the property and ask them to go to the roof to unclog the exhaust main (which is actually the sewage main). If not, it's your toilet problem, then you go to the grocery store and buy a leather bowl to press hard; Of course, the most effective way is to change the toilet ......Some toilets have the problems you said, and if you change them to TOTO, they will definitely not be blocked. **I suggest you take a look at the essence of the forum and the problem will be solved.

Even if there is no family with a toilet installed, I believe that not a few people will notice that there will be two flush buttons on the toilet tank, and some friends may think that half of the big and half of the small are small, so is it not small that represents less water, and large means that there is more water? It is also possible that some friends have noticed it, but they have not studied it in depth.

I haven't heard of it, but I only know that there's a big one...