What a hot water heater anode really looks like after 10 years of use in Calgary
This rod came out of a Rheem PRO50-45FV1 50 gal gas water heater, installed in Calgary. It is 11 years old. I don't know if it's aluminum, zinc or magnesium. But per the manual, the PRO50 was "only" a 6-year tank. I didn't upgrade , so I expect this anode is *not* of premium manufacture - so probably zinc aluminum. Tests show it bubbles in vinegar, so magnesium. In short, it's in way better shape than I would have guessed. Easily has another 10 years, maybe even 20. ----- That's how it looked when I pulled it - I barely touched it, and certainly didn't clean it. Turns out I should have done, as most of the outer layer was a thick plating of calcium: It's pretty much original diameter. I know because (a) you can tell from the general shape, and (b) it was form-fitting to the tank opening when I pulled it - if it had ever been any bigger, it would not have fit in the first place. Measurements a...