When I run the water on my bathroom sink for about 5 seconds, I get a
fairly strong wiff of a foul odor, which only lasts a second or two.
From then on, I don't smell anything. Some other information:
1. If I plug the drain, I don't get the smell. This points to the
smell coming out of the drain, and not being in the water or coming
out of the faucet.
2. The house is about 9 years old. It's a single sink. It drains
quickly, without any slowdown. I've lived in the house for a year,
and this only started a couple of weeks ago.
3. I've tried liquid drano, and a bottle of the foaming "pipe snake"
stuff. Didn't make any difference.
4. This doesn't happen in the other bathrooms in the house, or any
I'm pretty clueless about plumbing and home repair in general, so any
tips would be appreciated. I haven't called a plumber yet, and I'd
like to avoid it if possible.