Forum Discussion
Chris Bryant wrote:
That is entirely normal- the galvanic action is greatest near the point where it's screwed in to the tank, plus it has more area contacting the steel- the plug as well as the rod. Every anode "wears" like that, and the steel rod in the center will not break. Worst case is the magnesium will come off in a big chunk. Nothing that will not flush out though.
Residential water heater anode rod....notice similar 'wear'
Very typical---normal
