I recently had the master bathroom remodeled. A couple of months after the remodel I noticed a foul smell coming from both sinks in the vanity. I have tried liquid drain cleaners and baking soda/vinegar/hot water but nothing helps. This smell did not exist prior to the remodel. Forgive me if this sounds crazy because I have very limited plumbing knowledge, but, while the new sinks are in the same place as the old ones we did move the shower to a different location. I noticed this morning the shower drain is beginning to drain slowly and is probably clogged with hair. Is it possible the sink drains are picking up the smell from a clog in the shower drain? If not, does anyone have a suggestion to get rid of the smell or what may be causing it. Many thanks!