ᐅ Bathtub Drain Odor Problem

Hello,

Our bathroom was recently renovated, and during this process, a plumber replaced the drain and overflow fitting.
After about four months, we have noticed the following issue: there is a strong, unpleasant odor (sewage) coming from the bathtub.

The bathtub is used only occasionally, about once every two weeks.

What could be the cause, and how can this problem be resolved?

Thank you very much

Exactly because of the infrequent use.

Try pouring water into the drain and repeat this over the next few days... then observe and smell.

We also have a shower on the ground floor. I pour water into the drain every few weeks. Alternatively, I was told oil could be used. It evaporates more slowly.

Benutzer 1001 schrieb:

We also have a shower on the ground floor. I run water down the drain every few weeks. Alternatively, I was told about using oil. It evaporates less quickly.

The problem is different. The water disappears because it gets pulled out by the air draft. However, this happens even faster with oil since it is lighter.

But as a general rule, oil should not be in the wastewater system.

We will try pouring water into the drain more often. Let’s see how it goes. Thanks.

hanghaus2023 schrieb:

The problem is different. The water disappears because it is pulled out by the air suction. This happens even faster with oil because it is lighter.

But in general, oil has no place in wastewater.

Well, then you could just connect a vacuum cleaner... I believe evaporation is more likely than suction.

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