[RickFLM4]

Originally Posted by Dackelone

You probably have hard water in your area... you might want to replace the cathode rod inside your hot water heater every few years as preventative maintenance.

https://www.familyhandyman.com/plumb...e-rod/view-all

That's an interesting read.

If we were on well water it would definitely be hard water. But we are on (supposedly pretty good) city water and have a whole home softener and whole home filter. The last tank in this location lasted 12 years and the one on the other side of the house even longer. Hard to tell what happened to this one.

I'm going to have the water softener / filter company come out and check everything + test the water to see if there is anything wrong somewhere else.