Yeah, I get where you're coming from. Not everyone has a rainy day fund just sitting around for stuff like this. I’ve patched a leaky tank with epoxy putty before—definitely not a long-term fix, but it held for a few months until I could swap it out. Still, I always wonder about the safety side of these quick fixes. Did you notice any rust or weird smells after using JB Weld? I’ve heard some folks say those patches can start to leak again if the pinhole gets bigger, or if the pressure builds up too much. Makes me a little nervous, honestly.
Curious if anyone’s tried those clamp-on pipe repair kits for water heaters? I’ve only ever used them on copper pipes, never on the tank itself. Wondering if they’d hold up any better or just end up being another temporary band-aid...
Curious if anyone’s tried those clamp-on pipe repair kits for water heaters? I’ve only ever used them on copper pipes, never on the tank itself. Wondering if they’d hold up any better or just end up being another temporary band-aid...
Honestly, I wouldn’t trust a clamp-on kit for a tank leak. Those kits are designed for straight pipe, not the curved surface of a heater tank. You might get it to seal for a bit, but with the pressure and heat cycles, it’ll probably start leaking again. Epoxy putty’s about as good as it gets for a quick patch, but yeah, you’re right—if the pinhole grows or rust is already spreading, it’s just buying time. I’ve seen tanks go from a drip to a full-on spray overnight... wouldn’t risk it long-term.
Had a similar situation last year—tiny leak on the bottom of the tank, right where it curves. I tried one of those clamp-on kits out of desperation, but honestly, it just wouldn’t sit flush. Water kept seeping around the edges. Ended up slapping some JB Weld on it as a stopgap, but even that only lasted a couple weeks before the drip came back worse. In my experience, once a tank starts leaking, it’s pretty much game over... might buy you a little time, but not much peace of mind.
Been there, felt that drip-drip anxiety. Tried duct tape once—didn’t even slow it down, just made the tank look like it was auditioning for a home improvement horror movie. Sometimes you just have to admit defeat and start shopping for a new one...
I get where you’re coming from—sometimes a leaky tank just feels like a lost cause. But before you toss the whole thing, there are a couple of things worth checking out, especially if the leak isn’t a full-on gusher. Duct tape’s not gonna cut it (I’ve seen more silver-wrapped tanks than I care to admit), but sometimes the fix is less dramatic than replacing the whole unit.
First thing I always tell folks: figure out exactly where that drip’s coming from. If it’s at the drain valve or the pressure relief valve, those can sometimes be tightened or swapped out without too much fuss. A leaky drain valve, for example, might just need a new washer or a little plumber’s tape on the threads. Same goes for the T&P valve—if it’s weeping, sometimes it’s just debris or mineral buildup causing it to not seal right.
Now, if you spot water actually seeping from the bottom seam of the tank itself, yeah... that usually means the inner lining’s shot and you’re looking at replacement. But I’ve been called out to “dead” heaters that just needed a $10 part and an hour of work. Not saying that’s always the case, but it happens more than you’d think.
One other thing—sometimes what looks like a tank leak is actually condensation or even water from nearby pipes dripping down and pooling under the heater. I’ve seen folks ready to haul their heater to the curb when all they needed was some pipe insulation.
Long story short: duct tape won’t save your water heater, but don’t give up on it until you’ve checked those valves and connections. You might get lucky and buy yourself another year or two before having to shell out for a new one.