I started reading a bit and found out that drains actually rely on some kind of water barrier to block sewer gases, which I had no idea about before. Now I’m wondering — what happens if that water disappears? Does it evaporate over time? And if yes, is there some system that’s supposed to prevent that automatically?
I’m not very experienced with plumbing, so I’m trying to understand whether this is something simple I can fix myself or if I should call a professional. Has anyone dealt with something similar? I’d really appreciate any advice, especially if you can explain it in simple terms



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Strange Smell from Floor Drain – Could It Be Something Hidden? - ThreadHunter April 7, 2026, 11:42 am
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