2 holes at the bottom of the toilet bowl to return fecal water

This is an installation problem, it should be that the drain port of the toilet bowl is not aligned with the drain mouth of the ground, the drain will roll up when flushing, and the sealing ring is deformed (the oil seal may be notched), and this phenomenon will appear---

Dear, I'm glad to answer for you: The 2 air return holes at the bottom of the toilet will return the fecal water as soon as the water is flushedAnswer: If you want to remove the toilet silver, and then plug the bottom hole of the toilet with glass glue again; If the hole is not sealed with glass glue before the installation, there will be a situation of fecal water, and there is also a situation that the toilet is not aligned with the sewer outlet during installation, resulting in the sewer blockage. >>>More

The bottom you said is that part, is it the bottom edge or directly below the bottom, how big is the hole, it is best if you can upload a detailed photo, so that it can be better explained to you. Generally, if it is a small piece on the bottom edge to fix the toilet with expansion bolts, but if it is directly below the bottom of the toilet, it should be the water outlet of the toilet, and the three main ones are to ensure that it is better and more convenient to choose the drainage reserved pipe mouth aimed at the ground when installing the toilet, and this hole should be much larger, about 50MM.

Place the toilet against the wall, and the hole facing the drain is the drain hole, blocking the other hole.

The possibility of repairing the toilet bowl without dismantling it is very small, only by dismantling the toilet and cleaning up the dirt on the ground, and then sealing it with sealant, can it be sealed, otherwise it cannot be sealed. Find a decoration company to repair it quickly, and it is not troublesome.