Hi, This past weekend I checked the anode rod for a GE electric water heater. I noticed that it was encased in a varnish-like material that I was able to scrape off. I replaced the rod after scraping/filing, to reveal bright metal. Nevertheless, I wonder about this material, which presumably acts like an insulator.
Is this covering normal? Should I be periodically scraping this material off?
thanks in advance.
bob