Been there, done that—my last water heater looked like a patchwork quilt by the end. Here’s my take:
- JB Weld is basically duct tape for grown-ups. Not pretty, but it’ll get you through a rough patch.
- I once tried plumber’s putty and a prayer... lasted about three days before the drip came back with a vengeance.
- Honestly, as long as you’re not swimming in your basement, I call it a win.
Sometimes you just need to stretch those dollars until payday rolls around.
I get the whole “patch it till payday” vibe, but man, JB Weld on a water heater always feels like putting a Band-Aid on a leaky dam. Had one job where the quick fix held—until it didn’t, and then it was a geyser at 2am. Sometimes I swear those leaks have a sixth sense for when you’re least ready. Personally, I’m a fan of the bucket-under-the-drip method... low-tech, but at least you know where the water’s going.
JB Weld on a water heater always feels like putting a Band-Aid on a leaky dam.
Totally get where you’re coming from. JB Weld can buy you a little time, but once that pressure builds up, it’s anyone’s guess how long it’ll hold. If you’re stuck waiting for payday, here’s what I usually do: shut off the water supply, drain the tank below the leak, then hit it with JB Weld or epoxy as dry as possible. After that, yeah, bucket-under-the-drip is the real MVP—at least you’re not mopping up at 2am. Just don’t forget to check the pressure relief valve too... sometimes that’s the real culprit and way easier to swap out.
Honestly, I get the appeal of a quick patch, but I’ve learned the hard way that once a tank starts leaking, it’s usually game over. JB Weld or epoxy might slow things down for a bit, but in my experience, you’re just delaying the inevitable—and sometimes making the eventual cleanup worse. I’ve had tenants try the “bucket under the drip” trick, and it works until someone bumps the bucket or forgets to empty it. Then you’re back to water damage and maybe even mold if it goes unnoticed.
I’d actually push back a bit on the idea of patching at all, especially if the leak is coming from the tank itself and not a fitting or valve. Once the tank wall is compromised, it’s only a matter of time before it fails completely. I’ve seen a pinhole turn into a full-on rupture overnight. If it’s a valve or fitting, sure, swap it out or tighten things up. But if it’s the tank, I usually just shut off the water and power, drain it, and bite the bullet on a replacement. It’s a bigger upfront cost, but you avoid the risk of flooding and all the headaches that come with water damage.
Pressure relief valves are definitely worth checking, though. Had one stick open once and it looked like a tank leak at first glance. Swapping that out is cheap and quick compared to dealing with a busted tank.
I get that sometimes you just need to buy a few days, but I’d be careful about relying on patches for anything more than that. Water heaters have a way of failing at the worst possible moment... usually when you’re out of town or in the middle of the night.
- Agreed, once the tank itself is leaking, it’s pretty much toast. Patching might hold for a day or two, but you’re just rolling the dice on a bigger mess.
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That’s a classic. I’ve seen folks replace a whole heater when it was just the relief valve.“Had one stick open once and it looked like a tank leak at first glance.”
- One thing I’m curious about—has anyone actually had luck with those “tank liner” repair kits? I’ve never seen one last, but maybe I’m missing something.