I’ve had mixed results with push-fits on old galvanized too. Like you said,
Just be careful—if there’s a lot of corrosion, those fittings can let go without much warning. I always keep a close eye on them and try not to leave them as a long-term solution, especially in rentals. Water damage headaches aren’t worth the risk.“sometimes it buys enough time to plan a proper swap.”
I get where you’re coming from about push-fits on old galvanized. I’ve seen them hold for a bit, but honestly, I’m not convinced they’re always the ticking time bomb people make them out to be. Like you said,
That’s been my experience too, especially when you’re in a pinch and can’t get to a full repipe right away.“sometimes it buys enough time to plan a proper swap.”
Here’s the thing though—if you clean up the pipe ends really well (wire brush, maybe even a little sandpaper if it’s not too far gone), and double-check for any deep pitting, those fittings can actually grip better than expected. Not saying I’d trust them for years, but for a few weeks or even months? Sometimes that’s all you need to get your ducks in a row.
I do agree, though, if it’s a rental or somewhere you can’t keep an eye on, it’s risky. But for your own place, with regular checks, it’s not always a disaster waiting to happen. Just my two cents from crawling under more than a few sketchy sinks...
I’ve been wrestling with this exact dilemma since moving in last year. When my kitchen sink started leaking, I tried a push-fit on the old galvanized (after a lot of scrubbing and cursing). Like you mentioned,
Mine’s held for almost two months now, but I’m always a little paranoid. Is there any way to know if the inside of the pipe is too far gone without cutting it open? I keep wondering if I’m just delaying the inevitable or if I should just bite the bullet and call a pro.“if you clean up the pipe ends really well... those fittings can actually grip better than expected.”
Honestly, you’re not alone in feeling a bit paranoid about those old galvanized pipes. They can be a real mixed bag—sometimes you get lucky and they hold up for years, other times it’s like playing plumbing roulette. Push-fits are surprisingly solid if you’ve cleaned the pipe ends well (sounds like you did the hard part already), but yeah, the inside of those pipes is where the real trouble usually hides.
Short of cutting the pipe open, there’s not a foolproof way to know how bad the corrosion is inside. Sometimes you can get a sense by looking at the water flow—if it’s noticeably weaker than it should be, that can mean the inside’s getting pretty gunked up. Another trick: tap the pipe gently with a screwdriver. If it sounds dull or you notice any soft spots, that’s a red flag. But honestly, even with those tricks, it’s still a bit of a guessing game.
I’ve seen folks get a few more years out of old galvanized with careful patch jobs, but I’ve also seen push-fits pop off when the pipe finally gives up. If you’re not seeing any leaks or weird smells, you’re probably okay for now. Just keep an eye on it, especially after big temperature swings or if you notice any new drips.
If you’re losing sleep over it or if the pipe looks really sketchy, calling in a pro isn’t a bad move. Sometimes peace of mind is worth the cost, especially if you’re worried about water damage down the line. But if you’re comfortable keeping an eye on things and doing the occasional check, no shame in riding it out a bit longer.
I’ve patched up plenty of these over the years, and sometimes they surprise you with how long they last... other times, not so much. It’s always a bit of a gamble with old galvanized.
sometimes you get lucky and they hold up for years, other times it’s like playing plumbing roulette
Man, “plumbing roulette” is spot on. I once patched a pipe in my aunt’s place that looked like it belonged in a museum—thing held for three more years before it finally croaked during Thanksgiving dinner. Water everywhere, turkey floating. If you’re not seeing leaks or weird smells, you’re probably fine for now, but those old pipes have a sense of humor... usually at your expense. Keep a towel handy just in case.