In my own bathroom, why do I smell the smell of other people s toilets?

There are several possible reasons why your bathroom smells bad: 1The flush toilet is of inferior quality, and a part of the water cannot be stored at the bottom of the toilet bowl after flushing the toilet to isolate the odor coming out of the pipe; 2.

If you pour water into the toilet bowl too quickly, you should not store some water at the bottom of the toilet bowl to isolate the odor coming out of the pipe; 3.A trap should be installed under the urinal, and if it is not installed, a part of the water should not be stored to isolate the odor in the pipe; 4.The pipes are broken and the odor is spilling from the broken area.

And your house must have some common pipes with your neighbors, so as long as the smell in the pipes can come out, you can smell the smell of other people's toilets.

Oh, and also look at the inlet of the drain of other pipes such as washbasins, washing machines, mop sinks, etc., to see if there is any smell overflowing, of course, these pipes are normally separate from the toilet pipes, unless the plumber novice makes a mistake, which I have not seen in decades of water and electricity. Let's take a look at the above 4 possible scenarios. Happy to you!