I've been noticing a horrible smell coming from the bathroom sink drain for a couple of weeks now. I've tried pouring bleach and hot water down it but the smell is still there. Is this something serious or can I fix it myself without calling a plumber?
Have you already unscrewed the trap to clean inside it? Usually the smell comes from hair, soap, and accumulated organic matter that bleach doesn't completely dissolve - you just remove the trap from the siphon (it's easy, turn it counterclockwise), scrub it well with a brush and hot water, and you're done; if it still smells after that, then there might be a deeper problem in the pipes and you should call a plumber.
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