I’d check for discoloration by running water from the drain valve. If there is any rust, that’s where you’ll see it first. Yours, Larry
Actually, that’s what I did. When I drained the tank, I ran the first 4 gallons or so into a clean paint bucket. I was looking for evidence of sediment and crud. The bucket happened to be white so it would have been obvious if the water had rust.
I defer to your considerable experience in this matter, which I why I intend to be vigilant about monitoring the condition of my anode. I’ll also pull another bottom sample when I check the rod. It only takes a few minutes. Sorta like a 6-month dental checkup?
Thanks for this forum, and thanks for the discussion!