The water pipe in the bathroom is connected, but the toilet is not filled with water, and the shower

OK. Some installations are to directly put the toilet on the drain and put it, and then beat the glass glue around it. In addition, the toilet is placed on cement that has been laid according to the size of the lower edge of the toilet in advance. >>>More

Definitely not good! As long as there is a problem with the floor drain seal, then the whole bathroom will stink, and it should be connected to the downspout such as the basin.

Even if the exhaust pipe at the top of the fecal pipe is opened one meter away from the toilet, this will not happen. Unless, your toilet doesn't have water storage and goes straight to the manure pipe, there is no reason why this phenomenon can occur.

You need to use some waterproof materials to waterproof the drain pipe and the tile, you can use some waterproof paint to repair those gaps, such as some of the waterproof coatings used for kitchen and bathroom waterproofing, especially suitable for non-destructive or minimally invasive treatment of the tile finish in the home kitchen and bathroom, you can try, hope to adopt!

It doesn't matter if you sit on the toilet door and don't have to solve it.