Quote Originally Posted by stovens
I just went back to this set of photos a second time and now I think I see the ball check valve. The brass connection just before the inlet on the fuel filter? I didn't see the handle, but that's got to be it!
That's it.

Purchased at an oil field supply house, but probably the same thing as the natural gas hardware store valve.

In service for 14 years with no probs.


I'm surprised you didn't comment on the fuel pump....