I’m sorry to hear that, Spidey. I was lucky enough to notice mine before I threw it in the pot.
For me, I’m 100% certain that my burst was from ice. I’d had my wort chiller for, easily, 12 years and I never had an issue with it. But we’ve had some absurd temperatures this winter, and if you aren’t actually inverting your chiller and getting all the water out of it after you are done chilling, there will be water in there with the potential to expand and burst your copper.
Everyone – Learn from our stupidity.