[rotaxman]

Bob,

I know that my 06 had a check valve I had to change it out. I don't know about my 09. I'm pretty sure that it has the same water heater as my 06 had.

You can see it from the basement storage area on the street side as I recall it had plastic fittings on it that you could reach with a little stretching. I used an open end wrench. Like you say its a little hard to reach but it can be done.

You shouldn't have to take the tank out to make the change.

As far as Surburban not knowing anything about a valve being installed it could be something that the dummies at DRV installed on the tank. You know how DRV is they don't have much talent in the engineering department. They may of decided in their infinite wisdom to install just one more thing to irritate customers.

Hope you resolve your problem with out to much trouble.

As always good camping

Joyce and Jerry