Brownish goo coming out of gap behind bathroom sink
A mysterious substance is seeping out of a small gap between the bathroom sink countertop and backsplash, returning just two days after being completely cleaned and dried. This leaves people concerned and unsure of what steps to take next to handle the recurring growth.
What people tried
Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.
Found another way around this?
Share your steps and trade-offs so fellow engineers don't have to reinvent the wheel. No account required.
Brownish goo coming out of gap behind bathroom sink
- 1guessing it might be wet lint or dustDid this help you?
- 2Cleaning and drying the area repeatedlyDid this help you?
- 3Considering sealing the gap with bathroom/silicone caulkDid this help you?
In their words
Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.
“my partner and I are concerned and don’t know what to do about it now.”source ↗
“I have a very small crack/gap between the backsplash and the countertop behind my bathroom sink. Something is slowly oozing/seeping out of the gap. It's brownish goo and I can scape it off.”source ↗
“What’s strange is that I can completely clean and dry the area, but within about 2 days, the substance comes back.”source ↗
Where this came up
People with this problem also raised
- 5White cottony growth on basement wall mold or mineral deposits?
- 7Why is there a wet spot on my wall every morning?
- 2Why are my bathroom walls wet and brown after a shower?
- 4Why is this wall discolored if it is not wet?
- 3Gap between a new faucet base and the wall
- 10How do I find the source of a mysterious bathroom leak?