I keep hearing about copper vs PEX, but I’m honestly a little nervous about both. We just moved into a place built in the late 70s, and I have no clue what’s behind the walls. The water pressure’s fine, but sometimes there’s this weird metallic taste—could that be a sign of old pipes starting to go? Or is that just normal for older homes?
Also, is it ever worth doing a partial replacement, or does that just end up causing more headaches down the line? I’d rather not rip out every wall if I don’t have to, but I also don’t want to risk leaks or water damage. Curious if anyone’s had luck with spot fixes, or if it’s really better to just bite the bullet and do a full repipe when things start acting up.
“sometimes there’s this weird metallic taste—could that be a sign of old pipes starting to go? Or is that just normal for older homes?”
That metallic taste is definitely a red flag, especially in a house from the late 70s. It’s not “just normal”—it usually means you’ve got corrosion happening somewhere, and that can lead to pinhole leaks or even bigger issues down the line. I’ve seen plenty of folks try to ignore it, only to end up with water damage that costs way more than a proactive fix.
Partial replacements can work, but they’re a gamble. Mixing old and new materials (like splicing PEX into old copper) sometimes creates weak points, especially if the original pipes are already compromised. You might get a few more years, but you’re basically kicking the can down the road. If you’re already opening up walls for spot fixes, you’re paying for labor twice if you have to go back later.
If you’re worried about cost or disruption, at least get a plumber to scope things out and test for lead or other contaminants. But honestly, once you start seeing signs like metallic taste, it’s usually smarter to plan for a full repipe sooner rather than later. It’s painful upfront, but way less stressful than dealing with a midnight leak.
Honestly, I get where you’re coming from—it’s tough to know when something’s just “old house stuff” or a real problem. That metallic taste would make me nervous too, but don’t feel bad for questioning it. Catching it early could save you a lot of hassle down the road. It’s stressful, but you’re not overreacting.
That metallic taste would make me nervous too, but don’t feel bad for questioning it.
Honestly, a weird taste in the water is usually my cue to start poking around. Here’s my quick-and-dirty checklist: 1) Check if it’s just one faucet or the whole house. 2) Run the tap for a minute—sometimes it’s just stagnant water. 3) If it sticks around, grab a cheap water test kit. If you see rust or greenish stains, that’s a sign your pipes are waving the white flag. I swapped out my old galvanized pipes last year—messy, but worth it for peace of mind (and better coffee). Sometimes “old house stuff” is just old house stuff... but sometimes it’s a plumbing adventure waiting to happen.
If you see rust or greenish stains, that’s a sign your pipes are waving the white flag.
- Metallic taste isn’t always a death sentence for pipes, but it’s rarely good news.
- Don’t ignore low water pressure—it’s a classic “old pipe” symptom.
- If you’re seeing flakes or sediment, that’s your pipes literally falling apart.
- Swapping pipes is a pain, but waiting until you’ve got a leak is worse. Trust me, cleanup is not fun.
- Sometimes it’s just mineral buildup, but if you’re getting weird colors or tastes, don’t wait too long to dig deeper.