Originally Posted by Radio
Apples to Oranges, but I have never had a moments trouble with my Suburban WH.
Corrosion that fast almost seems like a current-through-dissimilar-metal kind of problem. Or the jet carries a charge that causes moisture to be drawn to it like an electric charge in a paint booth.
I had a Suburban WH in an earlier vehicle, in which I also had to replace a jet. But that was when it was ten or fifteen years old. Eventually I replaced the entire WH with a new one, and never had trouble during the year or two I owned that vehicle (a small Class B) thereafter.
The difference may be that I live in the Pusher full-time, and the WH is always hot, or warm anyhow. That's why I doubt it's a moisture problem. Also, the jet is a little piece of brass that screws into a bigger piece of brass (the gas valve), so I don't think it's a dissimilar-metals phenomenon. But if I had access to a nice metal lathe, or a small mill -- or, I guess, a large one -- perhaps I'd make a jet out of stainless.
Anyhow, ees a meestery, señor. ¿No?