Hi, everyone. This is my first post. Im looking for some knowledge, as well as somewhere to be able to ask questions, and get some professional, or semi professional answers. Hopefully someone can help me. First things, first. The tile in question was installed while the house was being built...

Interesting event two days ago: Shutoff valve for the toilet in a bath at home that I put in 8 years ago started to leak. Not huge amounts. Soak the shower rug kind of thing. "Odd", I thought. So I got a pair of wrenches and figured I'd tighten it up a quarter turn. That made it worse. I...