> Though I wonder why they didn’t recommend preventative maintenance on the water heater- if it was electric, why not replace the sacrificial anode? I tried to

> Though I wonder why they didn’t recommend preventative maintenance on the water heater- if it was electric, why not replace the sacrificial anode? I tried to do that on my old water heater, and it's probably good I gave up. I couldn't get that nut to budge (even after buying some pipe to make a long breaker bar), and I think there's was a good chance I might have wreaked it if I did. The thing was small, and we eventually just replaced it with a larger one that has the benefit of being new with a much more reliable control unit.