I've definitely run into pipes making noise that turned out to be harmless. A few things I've noticed from experience: - Clicking or tapping when hot...

Good points all around. From my experience: - Silicone rings seem convenient but often leak after a while—had to redo a few jobs because of that. - W...

Definitely agree with this—wax rings are solid if you're careful. A couple extra tips I've learned the hard way: - Check flange height first; if it's ...