Bleach will destroy any bacteria from food residue.
Pour bleach carefully into the drain so it doesn't splash onto counter or clothing. Let sit 15 min. Then run hot water to rinse bleach through the drain and pipes.
There has been a musty (moldy?) odor in the bathroom, and I've finally realized it is coming from the overflow drain in the sink. Because it was on hand, I've tried ...
See more
DIY Drain Cleaner