I went from too small to too big really quickly somehow. I wanted to solder it, but now I think there's way too much play. I have a 1/2" stainless coupling that I want to solder in for a drain valve. I'm using Stay-Brite 8, and it indicates that it is good at filling gaps in loose fittings, but I don't know HOW good.
What are my options?
What are my options?