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Plumbing in the Home/urine smell under drain overflow plate

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Question
why does my tub drain overflow plate have a bad urine odor but it is clean and the drain is cleaned.

Answer
ellie, Based on what info you have provided, I can only  assume that the trap water is being siphoned down the drain due to poor venting. The water seal is not stopping sewer smells and gasses from traveling up and out. An indicator of this condition is sometimes when a toilet is flushed a gurgling noise is heard in the tub drain. I would need more specifics  about the piping to pin point the problem. A knowledgeable plumber can  tell you right away if you have vent issues by inspecting the system  

Plumbing in the Home

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Jay Nicholas

Expertise

Plumbing & Heating (warm air, hot water & steam heat)

Experience

40 years in the business, 35 years as a lic. master plumber in NY State. Retired

Education/Credentials
Graduated Magna cum laude at the School of Hard Knocks

Past/Present Clients
Commercial, residential and light industrial. You name it ...I have probably worked on it

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