A little felt or foam pipe wrap can help dampen it, and it’s cheap—worth a shot if it’s driving you crazy.
That pipe wrap trick really does help, especially in spots where the PEX is rubbing against wood. I’ve even used those adhesive-backed felt pads (the kind for chair legs) in tight corners where regular wrap wouldn’t fit. Not pretty, but it works.
On the longevity thing, I’m with you that copper isn’t always the gold standard people remember. I’ve had to chase down pinhole leaks in a 1960s ranch—turned out to be a combo of hard water and some old flux left inside the joints. It’s sneaky because you don’t see anything until there’s a wet spot on the drywall or ceiling. With PEX, at least if something goes wrong, it’s usually at a fitting or from physical damage, not random corrosion in the middle of a run.
If anyone’s curious about how to avoid squeaks or future headaches during a reno, here’s what’s worked for me:
1. **Leave slack:** Don’t pull PEX tight between joists. Give it some play so it can expand and contract.
2. **Use isolation clamps:** These plastic clamps are designed to let the pipe move a bit without rubbing directly on wood or metal.
3. **Avoid sharp bends:** Use gentle sweeps instead of tight 90s—less stress on the pipe and fewer creaks.
4. **Protect from sunlight:** Even temporary UV exposure during construction can weaken PEX over time. Keep it covered if you’re storing materials outside.
5. **Check water chemistry:** If you’re sticking with copper, test your water for pH and hardness. There are treatments for aggressive water, but they’re not always cheap.
I do think PEX gets a bad rap sometimes just because it feels “new.” But like you said, as long as it isn’t kinked or exposed to sunlight, it seems to last just fine under pressure. The only thing I’d add is that rodents can chew through PEX if they get into your walls—rare but worth considering if you’ve had critter problems before.
All things considered, I’d rather deal with an occasional squeak than cut open walls for mystery leaks any day...
All things considered, I’d rather deal with an occasional squeak than cut open walls for mystery leaks any day...
Couldn’t agree more. I’ve had to chase leaks in old copper lines buried behind tile—never fun, and always more expensive than you think. One thing I’ll add: in rentals, PEX has saved me a ton of headaches. Tenants don’t always report small drips until it’s a disaster, but at least with PEX, failures are usually predictable (fittings, like you said). Still, I do keep an eye out for rodent activity—learned that lesson the hard way in a triplex where mice chewed through a cold line under the kitchen. Not common, but when it happens... yikes.
Had a similar run-in with old galvanized pipes in my 1920s place—thought I’d just patch a drip, ended up with half the kitchen wall open and three days of chaos. PEX is tempting, but I’m stubborn about keeping the old stuff where I can. There’s just something about those original lines, even if they do make me sweat sometimes...
TITLE: How long do pipes really last under pressure?
That’s the gamble with old galvanized. They’ve got character, I’ll give you that, but after a hundred years under pressure, they’re kind of living on borrowed time. I see this all the time—folks patch a leak thinking it’ll buy them a few more years, then one fix turns into a full-on wall demo. It’s tough to know where to draw the line between original charm and just plain risky.
I get wanting to keep the old lines. There’s a certain satisfaction in keeping what’s lasted this long. But those pipes corrode from the inside out, so even if they look okay from the outside, you never really know what you’re dealing with until you open things up. Sometimes you luck out and it’s just surface rust... but more often, it’s a mess.
PEX is a big leap from galvanized, but it saves a lot of headaches down the road. Not saying you have to rip everything out, but if you’re already opening walls, it’s worth considering swapping at least the trouble spots. I’ve seen too many folks go through the same chaos again a year later because they tried to keep everything original.
Still, can’t blame you for sweating it out with the old stuff. There’s something about seeing those thick pipes and knowing they’ve been doing their job for generations. Just keep an eye on water pressure and any new discoloration or drop in flow—those are usually the first signs something’s about to go sideways.
At the end of the day, it’s your call how much history you want to keep versus how much hassle you’re willing to risk. Just don’t let nostalgia cost you another three days of chaos if you can help it...
- Totally agree about the gamble with old galvanized. I’m always torn between saving money and just biting the bullet on a full replacement.
- My wallet says patch, but my nerves say swap it out—especially after I had a “small” leak turn into a weekend project last year.
- PEX is tempting, but I worry about resale value if I mix materials. Anyone else run into that?
- I do keep an eye on water pressure and weird stains, but sometimes it feels like I’m just waiting for the next surprise.
- At the end of the day, I guess it’s about how much risk you’re willing to live with... and how much you want to spend.