Our kids bathroom has developed the strangest problem and I'm not sure how or why it has happened. When they flush the toilet and then run the water in the sink the smell of the water is horrible and smells like something that was recently flushed down the toilet. I have asked everyone I know who knows anything about plumbing and this has them all stumped. It has nothing to do with anything down in the drain, the smell is coming from the water itself. After a while the smell seems to get better, but don't flush the toilet or the smell will come right back. It is just sickening. My daughter refuses to wash her face or anything in that bathroom and I can't say I blame her. Any ideas?
P.S. Also, it is only in that bathroom, not in the other bathroom, kitchen or laundry room at all.