[quote:5c23ef94f1=elnano]I agree: when you pull an anode and nothing is left but the wire, there has probably been damage. You didn’t say whether it was gas or electric. I suggest you go to Know-how and check the sections on how to determine the condition of the tank. If you do that and everything is OK, I’d have you consider putting TWO anodes in — one in place of the one you removed and another in the hot-water port. Then check one of them in a year and report back to us on what you find.
I’m using a gas water heater, and when I checked the condition of the under side of the heater following the instructions in the Know-how, I see that the under side is covered with about 30% rust, what do you think? 🙂