Bathtub drain odor problem

Hajoo then you could connect a vacuum cleaner.. I believe more in evaporation than in so-called.

By the way, if you wash your dirty dishes, what do you do with the frying fat and oil?

With this reasoning, you are finally allowed to do everything again. If it possibly works without it, why should you do it with it? Besides, oil is rather inconvenient, as liquid fat or cooking oil solidifies quite quickly in the drain. Therefore, it is also recommended to dispose of excess fat in the residual waste and, for example, only put the pan in the dishwasher afterward.

Mine is better than your vacuum cleaner version.

By the way, if your filthy [am Geschirr] washes, what do you do with the cooking grease and oil?

First soak it up with a Kleenex and dispose of it in the residual waste.
I confess: at grandma and grandpa's it went down the drain... which then got clogged with grease after 30 years.

By the way, when your dirty [thing] is washing the dishes, what do you do with the frying fat and oil?

Wipe greasy pans with kitchen paper and then put it in the trash. Oil goes into a separate container provided by the city. It is then collected and recycled at our local recycling center. The container fills up quickly.

Any sensible person wouldn't deliberately clog their drain.

With us, a bottle or glass with used cooking oil may explicitly be disposed of in the residual waste.

Okay now we know how you dispose of your fat or oil. But none of you contributed to a solution, you only gave your two cents. And again, nothing sucks the oil out of the siphon.