![When I clean my sink drain cover it's mucked with this black grime. My husband's sink doesn't have this problem. What could it be? : r/whatisthisthing When I clean my sink drain cover it's mucked with this black grime. My husband's sink doesn't have this problem. What could it be? : r/whatisthisthing](https://preview.redd.it/kuwxtt258sn21.jpg?width=640&crop=smart&auto=webp&s=493c86c610b6017fe8d0b5c56854c0f5eaafc8cb)
When I clean my sink drain cover it's mucked with this black grime. My husband's sink doesn't have this problem. What could it be? : r/whatisthisthing
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🍒 How to Remove & Clean Harmful Mildew / Mold➔ from Bathroom Sink Faucet, Aerator, and Drain - YouTube
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How to Clean Black Sludge in Bathroom Sink Drains | Hunker | Clean bathroom sink, Bathroom sink drain, Bathroom sink
![bathroom - What is this black stuff that appeared on my drain after cleaning with a bleach-based cleaner and how do I clean it? - Home Improvement Stack Exchange bathroom - What is this black stuff that appeared on my drain after cleaning with a bleach-based cleaner and how do I clean it? - Home Improvement Stack Exchange](https://i.imgur.com/6Ux9Q4o.jpg)