Rigid is always cleaner, but sometimes you just gotta work with what you’ve got.
That’s the truth. I’ve run into so many “creative” plumbing setups in older homes, and sometimes flex is the only way to make things work without tearing out half the vanity. I do agree about not over-tightening—learned that lesson the hard way when a connection started dripping a month later. It’s not perfect, but like you said, sometimes it’s just about making it work for now.
Flex lines have definitely saved my bacon more than once, especially in those old houses where nothing lines up the way it should. I get the appeal of rigid—looks sharp, less risk of kinks—but sometimes it’s just not worth the headache or the demo. One thing I’d add: if you do go with flex, check for any twist in the hose before tightening down. Even a little twist can stress the fitting over time and lead to leaks. Learned that the hard way under a pedestal sink... never fun cleaning up after that.
I get the love for flex, but I’ve actually had more issues with leaks on those over the years, especially in rentals where folks aren’t always careful. Rigid takes longer, yeah, but once it’s in, I don’t have to think about it again. Flex is quick, but I end up replacing them more often than I’d like. If you’re running a bunch of units, less future hassle is worth the extra install time upfront.
Honestly, I’m right there with you on the rigid pipes. I know flex lines are supposed to be the “easy button,” but I’ve had them fail in weird ways—especially when someone’s not gentle under the sink. Like you said,
That’s been my experience too.“Flex is quick, but I end up replacing them more often than I’d like.”
What bugs me even more is the waste factor. Every time a flex line leaks or bursts, it’s another chunk of plastic and metal in the trash. Rigid copper or even PEX (if it’s done right) just seems to last forever, and that’s less stuff ending up in a landfill. Maybe it’s a little more work upfront, but I’d rather do it once and not have to think about it for a decade or two.
I get why people go for flex—sometimes you just want to get the job done and move on—but if you care about long-term durability and reducing waste, rigid wins out. Plus, fewer leaks means less water wasted, which is a win all around.
I get where you’re coming from on the waste, but I’ve gotta say, flex lines have saved me a ton of hassle (and money) when things don’t line up perfectly—especially in these older houses where nothing is square. When my bathroom sink ended up off-center after a vanity swap, rigid just wasn’t an option unless I wanted to rip out half the wall.
You mentioned,
That’s true, but isn’t there also a cost factor? Copper’s gotten crazy expensive lately, and even PEX tools aren’t cheap if you’re only doing one or two jobs. I’m all for durability, but sometimes the upfront cost just doesn’t make sense for a quick fix.“Rigid copper or even PEX (if it’s done right) just seems to last forever, and that’s less stuff ending up in a landfill.”
I do wish flex lines were more robust though. Maybe there’s a middle ground—like higher quality braided lines? Or maybe I’m just being too cheap and should bite the bullet on rigid next time...