Man, I’ve been there with those ancient valves. Last year I tried to “just” swap a washer on a 60s-era shutoff and ended up with the whole thing crumbling in my hands. Ended up cutting the pipe and sweating on a new ball valve—way more work than I planned, but at least now it actually shuts off. Ever notice how the old stuff either lasts forever or falls apart the second you touch it? Makes you wonder if it’s worth the gamble.
Yeah, those old valves are a total wildcard. Sometimes you get one that’s basically fossilized and still works, other times it just disintegrates if you look at it wrong. I’ve had to chase leaks through walls more than once because a “quick fix” turned into a full-on project. Honestly, I don’t trust anything with a compression nut from before 1980... but then again, some of that old brass is better than the new stuff. It’s always a toss-up.
Honestly, I don’t trust anything with a compression nut from before 1980... but then again, some of that old brass is better than the new stuff.
I get where you’re coming from, but I’ve had some of those ancient compression fittings outlast brand new ones by years. You open up a wall and find a valve that looks like it belongs in a museum, yet it’s bone dry. Meanwhile, I’ve replaced “modern” shut-offs less than five years old because they started seeping. It’s kind of wild what passes for quality these days...
Can’t argue with that—some of those old valves are like little tanks. I swear, I’ve pulled out fittings from the ‘60s that look rough but still seal up tight, no leaks at all. Meanwhile, half the new stuff feels like it’s made out of soda cans. I get nervous every time I tighten a modern nut, like, is this thing gonna strip? Just goes to show, sometimes “vintage” really does mean better.
Funny you mention that—last week I was swapping a supply line on a 1972 toilet and the old brass shutoff valve still turned smooth as butter. The new compression nut I used? Already felt like it wanted to round off. If you’re dealing with those lightweight fittings, I always go hand-tight plus a quarter turn, max. A dab of thread sealant helps too, especially if the threads feel flimsy. Sometimes I wonder if the “progress” in materials is just about saving a few cents...