So, I've long since moved into my new condo, and thinks are mostly hunky-dory. I've noticed, whoever, that my bathroom sink smells. Not terrible or overpowering, but it definately has an odour, and I'd like to be rid of it.
I've used that terribly caustic drain-o type stuff, and it goes away if I pour it down the run-off drain (the high level one on the back of the sink). So I'm guessing it's a mold or something in there? It comes back a couple days after drain-o-ing it. Any suggestions on how to kill/remove it? Lots of bleach? I would have thought drain-clearing fluid would be enough, but apparently not.