One possibility is that the pipe under your sink’s P-trap is clogged ... and toilets you don’t typically use such as the guest bathroom. Also, check the drain with a connected garbage disposal.

"When your sink gives off that rotten egg smell, it's usually bacteria growing in your pipes, it's usually bacteria growing ...

Before you can stop a leak in your kitchen sink plumbing, you have to find its source. That can be tricky. Water that escapes your pipes can travel a long way before it drops onto your cabinet’s floor ...