Suburban Anode Replacement - Anti Seize?

mobeewan wrote:

Lynnmor wrote:

MEXICOWANDERER wrote:
Anodic Cathodic action works using water as the electrolyte medium or perhaps it is supposed to function somehow in a glass lined tank?

The glass lining can be less than perfect, and there is no glass protecting the steel at the various threaded fittings.

Since Atwood uses an aluminum tank that acts as an anode how much metal is lost? Do they ever become porous from that action?

I believe it is a seperate layer of anodic aluminum bonded to the inside of the tank. Don't know what happens once it is gone if ever, but the places that would be effected are at the fitting connection bosses where the metal gas control and bronze relief valve are screwed in. Also where the drain plug and the water in and out connections screw in if plastic adapters and nylon or plastic drain plug are not used.

Atwood inner tanks will and can be "corroded" and become porous over time. I have seen it just a few times in almost 40 years as a Tech. The FIRST time was 35 years ago and it corroded the Atwood tank in less than 6 months. The customer was in the Rio Grande Valley of Texas for the winter and his water supply was bad and caused pinholes all over the tank. That is why draining and flushing on both Suburban and Atwood on a regular basis is a good idea. Suburban's give you a pretty accurate idea of the corrosion when you see the Anode completely eaten up. Doug