Funny you mention that, because I've actually had decent luck with tape under sinks, even on older setups. I get that it can be a pain, especially if ...

Yeah, fiberglass wrap can be tricky with condensation. I've seen cases where moisture gets trapped underneath, and over time it leads to corrosion or ...

Actually, before jumping straight to galvanized pipes, I'd check your shower valve first. Older valves often don't balance pressure well, so when some...