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When is it time to swap out old pipes?

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jons42
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(@jons42)
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I get where you’re coming from—patching leaks definitely feels like you’re just delaying the inevitable, especially after that second or third “surprise” drip. But I’ll be honest, I’m a bit more cautious about jumping straight to a whole-house repipe unless it’s really necessary. Maybe it’s just my nerves talking, but ripping out all the plumbing at once seems like a recipe for hidden headaches (and costs) if you don’t absolutely need it.

I had a stretch where I was patching up pinhole leaks in my old copper lines every few months. Annoying? You bet. But I started using those push-to-connect couplings and actually got pretty good at quick fixes. It bought me almost two years before I finally did a partial repipe, and by then I’d saved up enough to do it right.

And on the PEX thing—yeah, it can go brittle, but I’ve noticed it really depends on the quality of the fittings and the water chemistry. My neighbor used some off-brand stuff and had issues, but my setup’s been solid (knock on wood). Sometimes it pays to be picky about materials… and to keep a bucket handy just in case.


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cloudt74
Posts: 9
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“ripping out all the plumbing at once seems like a recipe for hidden headaches (and costs) if you don’t absolutely need it.”

Honestly, I’m with you there—full repipes can open a can of worms, especially in older houses where you never know what you’ll find behind the walls. But I always ask: how many leaks before it’s not worth patching anymore? Sometimes those “quick fixes” start adding up, both in time and cash. And yeah, PEX is a mixed bag. I’ve seen it hold up great, but I’ve also replaced whole runs where cheap fittings or sunlight exposure wrecked it early. It’s all about weighing risk vs. reward, I guess.


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shadowe68
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I get the hesitation around ripping everything out at once—demo can spiral fast, especially if you run into something weird like old knob-and-tube or hidden water damage. But at a certain point, patching starts to feel like throwing good money after bad. For me, two leaks in a year was my tipping point. After that, the peace of mind from new lines was worth the hassle. PEX is decent, but yeah, cheap fittings are a gamble. Just gotta pick your battles, I guess.


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Posts: 16
(@pfurry39)
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I get where you’re coming from, but I’m not totally convinced that “two leaks in a year” is always a clear sign to gut everything. Here’s what I keep circling back to:

-

“patching starts to feel like throwing good money after bad”
— Maybe, but sometimes patching buys you a few more years, especially if the rest of the system isn’t showing its age. Not every leak means the whole thing’s shot.
- Demo can get expensive fast, especially if you’re living in the house. I’ve seen folks rip out all their pipes and then discover they need to redo insulation, drywall, even electrical. That snowball effect is real.
- PEX is solid, but I’ve heard enough stories about cheap fittings failing that I’m still a little wary. Copper’s pricey, but it’s tried and true.
- For me, I’d rather monitor and fix as needed unless there’s clear evidence the whole system’s failing. Maybe I’m just risk-averse, but I’d rather not open up walls unless I absolutely have to.

Curious if anyone else has managed to stretch old pipes longer than expected? Sometimes the “ticking time bomb” thing gets overblown...


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timwoodworker
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Honestly, I’ve been patching my old galvanized pipes for years now—probably longer than I should admit. Had a couple leaks, fixed ‘em, and just kept an eye out. Yeah, it’s not ideal, but ripping everything out just wasn’t in the budget. Sometimes you gotta pick your battles… and your expenses.


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