Q: I have noticed that kitchen sinks don't have overflow protection like bathroom sinks. When I asked my plumber about this he said it was not necessary but could not tell me why. I think it would be ...

Overflow drain at the top of a sink - Ari Triyanto/Shutterstock If you are not a plumber or sink installation expert, there may be some components of your bathroom sink you have yet to learn about.

Q: I’m planning to replace my bathroom sink and vanity, and have run into an odd snag. Almost none of the sinks I’ve seen have an overflow tube. When I’ve asked about this, I’ve gotten almost ...

Q You forgot something when you were doing your plumbing work in a recent column. There is one more thing that can cause vanity sink odor -- the overflow drain. I'm an ex-plumber, and when I moved to ...