Man, I’ve run into that a bunch. Sometimes those new stops just don’t want to play nice with the old lines. I’ll usually just swap out the supply lines for braided flex—gives you a little wiggle room. I’ve tried bending the old copper lines before, but that’s asking for a leak down the road. If it’s way off, I’ll redo the lines, but most of the time flex lines save the day. Moving the sink is a last resort for me... too much hassle unless everything else fails.
Honestly, I get the appeal of flex lines—they’re quick and forgiving—but I’ve had a couple go bad after a few years. Maybe just my luck, but I’m a bit wary now. If the offset isn’t too crazy, I’ll sweat in some new copper or use PEX with push-fits. Takes a little longer, but I trust it more long-term. Flex is great for tight spots though... just not my first choice if I can help it.
I totally get where you’re coming from—flex lines are super convenient, but I’ve had a couple start to corrode at the fittings after a few years too. Ever notice how some brands seem to last longer than others? I’ve been leaning toward PEX with push-fits lately as well, especially since it’s a bit more eco-friendly and doesn’t leach metals. Do you ever worry about the plastic in PEX over time, though? I keep reading mixed things about longevity and chemical leaching, but it’s hard to sort fact from hype. Either way, sweating copper is solid if you’ve got the patience... just not always practical for those weird offsets under a sink.
I’ve run into the same issue with flex lines—especially the cheaper ones.
Definitely. I started labeling install dates on mine just to keep track. As for PEX, I’ve read the studies about leaching, but in practice, I haven’t noticed any taste or odor issues even after several years. Still, there’s always that nagging doubt about long-term exposure... Copper’s great, but like you said, it’s a pain when you’re dealing with odd angles under a cramped vanity. Sometimes it feels like every option has its own trade-off.“Ever notice how some brands seem to last longer than others?”
Man, I hear you on the copper under vanities—my knuckles still have the scars. I’m with you on PEX too... I keep waiting for some weird taste but so far, nothing. Still, I can’t help but double-check every connection for leaks. Flex lines are a gamble—sometimes they last, sometimes they don’t, and it’s always the cheap ones that go first. Honestly, I’ve started keeping a flashlight and a towel handy just in case.
