Kitchen sink disaster - DIY or call a plumber?

- Gotta agree with you on the “not behind walls” rule. I’ve seen what happens when a tiny leak goes unnoticed for months - mold, warped cabinets, and a repair bill that’ll make you want to eat ramen for a year.
- That said, I’m still a little twitchy about push-to-connects, even under a sink. They’re solid *if* you do the prep right, like you said. But I’ve walked into more than one “emergency” where someone skipped the deburring step or didn’t get a clean cut. Water everywhere, and suddenly it’s my Saturday.
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“At least with push-to-connect, you don’t have to worry about overtightening or threads stripping out.”

Bottom line: push-to-connect is fine for visible spots if you’re careful. Just don’t rush it, and keep a flashlight handy for those “just in case” checks. Your future self will thank you... or at least won’t curse you out.

I’ve had tenants try their hand at “quick fixes” under the sink, and it’s usually fine - until it isn’t. Curious if anyone’s had luck with push-to-connects on really old galvanized lines? I’ve always been wary of mixing new fittings with ancient pipes... seems like a recipe for callbacks.

Push-to-connects on old galvanized? Man, that’s rolling the dice. I’ve seen ‘em seal up okay for a bit, but those ancient threads love to crumble just when you think you’re done. Honestly, sometimes I feel like it’s just inviting leaks down the line... literally.

Push-to-connects on old galvanized? Man, that’s rolling the dice.

- Been there, tried that - regret it every time.
- Those fittings might hold for a few months, but I’ve had them start sweating or even pop off after a pressure spike.
- In one place, the inside of the pipe was so caked with rust, the connection barely grabbed. Ended up replacing a section anyway.
- If you’re dealing with “ancient threads,” I’d just budget for some pipe dope and a couple extra couplings... never hurts to have backup.
- Honestly, if you want sleep at night, swap out the bad section for copper or PEX. The peace of mind’s worth more than a quick fix.

Honestly, push-to-connect on old galvanized is like putting a Band-Aid on a leaky dam. I tried it once, thought I was clever, and ended up with a slow drip two weeks later. If you’re already under the sink, might as well do it right - PEX is way less hassle in the long run.

Honestly, I hear you on the push-to-connect stuff. It’s tempting because it’s quick, but old galvanized is just asking for trouble. I tried a SharkBite once - thought I was saving time - and it started leaking after a week. Ended up redoing it with PEX anyway. If you’re crawling under the sink already, might as well do it right the first time and skip the headache later. Those shortcuts never seem to last...

If you’re crawling under the sink already, might as well do it right the first time and skip the headache later.

Couldn’t agree more here. Those push-to-connect fittings have their place, but old galvanized just isn’t one of them. I’ve seen way too many “quick fixes” come back to haunt folks, especially in older houses. If you’ve already got the tools and the space, taking a little extra time with PEX or copper saves a lot of swearing down the road. Sometimes shortcuts just aren’t worth it.

For the SharkBite fittings mentioned here, the manufacturer's guide rules out a direct push-to-connect connection onto galvanized pipe. Cleaning the outside or calling it temporary doesn't change that compatibility limit. An appropriate transition or pipe replacement needs to be chosen for the actual pipe and condition; I'd have that assessed rather than rely on a connection the fitting wasn't designed for.

Temporary fixes are just that - temporary. But an incompatible fitting isn't an acceptable stopgap simply because someone checks it for drips. For this direct SharkBite-to-galvanized proposal, I'd keep the affected supply isolated if that can be done safely and arrange a suitable repair. Watching it every day doesn't change the fitting's approved pipe types.

Temporary fixes are just that - temporary.

Ain’t that the truth. I once thought I was a genius for slapping a push-to-connect on my ancient kitchen line - felt like a hero until it started dripping right before a dinner party. Nothing like mopping up under the sink in your “nice” clothes. Galvanized pipe is basically plumbing roulette at this point. If you can budget for a real fix, your future self will thank you... and your socks will stay dry.

- Been there - temporary fixes always come back to bite you, usually at the worst time.
- Galvanized pipe is a ticking time bomb, but I get wanting to stretch things out, especially if money’s tight.
- If you’re handy and have the patience, swapping out a small section with PEX and proper fittings can buy some peace of mind for not much cash.
- Honestly though, once you see that first drip, it’s usually just the start... I put off replacing a run in my old place and ended up with water in the cabinet twice in one month.
- You nailed it: if you can swing the real fix now, your future self will be way less stressed.

Honestly, you’re spot on about the “first drip” being just the beginning. I tried patching a leak under my sink with some epoxy putty once - figured it’d buy me a few months. Two weeks later, I was mopping up water at 2am. Lesson learned.

If you’re comfortable with basic tools, swapping out a section with PEX isn’t as intimidating as it sounds. The fittings are pretty forgiving, and you don’t need to sweat pipes or anything. It’s not a bad way to get some breathing room if you can’t do the whole job right now.

That said, I get the urge to stretch things out when money’s tight. Just keep in mind, water damage gets expensive fast. Sometimes biting the bullet and doing it right saves a lot of headaches (and cash) down the line. Either way, you’re not alone - everyone’s had that “should’ve fixed it sooner” moment at least once.

That’s the thing, right? You patch it up thinking you’ve bought yourself some time, but water always finds a way. I’ve been burned by the “temporary fix” route more than once, especially when I tried using that tape stuff on a pinhole leak. Looked fine for a week, then suddenly it was like Niagara Falls under my cabinet.

I keep hearing about PEX being the way to go, but I’m still a little skeptical. Is it really as foolproof as people say? I mean, I get that you don’t have to sweat pipes (which is a relief, because I’ve never touched a torch in my life), but what about the long-term reliability? Are those push-fit fittings really going to hold up, or am I just setting myself up for another late-night water disaster down the road?

Also, how much did you end up spending on the PEX and tools? I’m always weighing the cost of DIY versus just calling someone in. Sometimes it feels like by the time I buy all the stuff and spend my Saturday crawling around under the sink, I might as well have just paid a pro. But then again, plumbers aren’t exactly cheap either...

Curious if anyone’s had a PEX job go sideways, or if it’s mostly smooth sailing. I’m all for saving money, but not if it means I’m going to be mopping up water again in a month.

I get the appeal of PEX, but honestly, I’m not totally sold on push-fit fittings for everything. They’re convenient, sure, but I’ve read about a few cases where they leaked after a couple years, especially if the pipe wasn’t cut perfectly square. Crimp rings or expansion fittings seem more reliable long-term, though they do need a special tool. I spent about $120 on a basic crimp tool kit and enough PEX to redo under my sink - still cheaper than a plumber, but it took me a solid afternoon. If you’re not comfortable with the tools or double-checking every connection, sometimes paying for peace of mind isn’t the worst idea.

I hear you on the push-fit stuff. I’ve seen a handful of those fittings start to seep after a few years, usually when someone got a little lazy with the pipe cuts or didn’t quite seat it all the way. They’re great for quick fixes or tight spots, but I still lean toward crimp or expansion for anything behind a wall or under a sink - basically anywhere you don’t want to rip open again later.

Funny thing, last winter I helped my neighbor swap out his old copper lines for PEX. He went with crimp rings, and yeah, the tool wasn’t cheap, but he’s slept better knowing it’s not going to pop off in the middle of the night. The learning curve isn’t too bad once you get the hang of it, but double-checking every connection is key. I always tell folks: if you’re not 100% sure, maybe just call in backup before water starts spraying everywhere... Learned that one the hard way myself once.

I always tell folks: if you’re not 100% sure, maybe just call in backup before water starts spraying everywhere... Learned that one the hard way myself once.

Man, I feel this in my bones. Had a kitchen sink job a couple years back where the homeowner swore up and down those push-fit fittings were “idiot-proof.” Fast forward to 2am, I’m standing in ankle-deep water because one of ‘em let go behind the cabinet. Turns out, he’d cut the pipe with a hacksaw and didn’t bother deburring - just jammed it in and hoped for the best. That’s when I started carrying extra towels in the van.

I get why folks like push-fit for quick stuff or emergencies, but I’m with you - if it’s going behind drywall or under a sink where you don’t want to be crawling around again, crimp or expansion is worth the hassle. The peace of mind alone is huge. And yeah, those crimp tools aren’t cheap, but neither is replacing cabinets after a flood.

Funny thing is, I’ve seen some DIYers get cocky after a couple YouTube videos and think they’re ready for anything. Plumbing’s one of those things where being “pretty sure” isn’t enough. Water finds every mistake eventually. I always double-check my own work, even after all these years.

Not saying everyone needs to call a pro for every drip or leak, but if you’re staring at a mess of pipes under your kitchen sink and feeling even a little lost, there’s no shame in getting help before it turns into a disaster. Learned that lesson more than once... and my knees still remember crawling around on wet plywood at 3am.

Push-fit fittings are tempting, but I’ve learned the hard way that “idiot-proof” is a stretch - especially if you skip steps like deburring. I get wanting a quick fix, but for anything hidden or hard to reach, I always go with crimp or expansion. It’s more work up front, but way less stress later.

If you’re set on tackling a kitchen sink yourself, here’s my basic checklist:

1. Shut off the water (main valve if you have to).
2. Take photos before you start - helps if you need to put things back.
3. If you’re using push-fit, make sure the pipe ends are clean and smooth. Deburr every time.
4. Test your connections with a towel underneath before closing up cabinets or walls.
5. Keep an eye out for leaks over the next day or two.

Honestly, if you’re not sure what you’re looking at under there, it’s probably worth calling someone in. I’ve patched up enough “quick fixes” that turned into bigger messes to know my limits now. Sometimes peace of mind is worth more than saving a few bucks upfront.

I hear you on the “idiot-proof” thing - push-fit is great until it isn’t. I’ve had one pop off behind a wall and that was a nightmare to fix after the fact. For visible or easy-access spots, I’ll still use them sometimes, but anything hidden gets crimped or soldered now.

That checklist is solid. I’d add: keep a bucket handy just in case you miss some water in the line. And yeah, if you’re staring at a mess of pipes and feeling lost, it’s probably time to call in a pro. Sometimes saving $100 isn’t worth the headache or water damage risk.

Had a similar situation last year - thought I could get away with push-fit behind the cabinet, since “it’s just the sink, what could go wrong?” Well, two weeks later I found out exactly what could go wrong when I heard dripping inside the wall. Ended up cutting a hole and redoing it with PEX crimp. Now, if I can’t see it or reach it easily, I just bite the bullet and do it the old-fashioned way. And yeah, the bucket tip is gold. Learned that one after chasing water across the kitchen floor at midnight...

I feel this in my soul. I tried to “shortcut” a leaky trap under my sink last month with one of those quick-connect things. Looked fine at first, but then I noticed the cabinet base was starting to warp. Turns out, it was leaking just enough to soak everything but not enough to make a puddle - sneaky little disaster. Ended up spending my Saturday learning how to use a compression fitting and, honestly, it wasn’t as scary as I thought. Still, I’m with you: if I can’t see it or get to it without turning myself into a contortionist, I’m calling in the pros. My pride can take a hit, but my floors can’t handle another “learning experience.” The bucket trick is now a permanent fixture under my sink, just in case.