Wow, I never would have expected so much good info. Many Thanks to All!
Replacing the tank, or replacing the valve is likely the most practical way to go, but remember, I HATE OPD VALVES! They are a complicated solution to a non-existent problem that created many problems of their own. Have you ever had an OPD that would just let enough gas thru to keep a teapot warm but no more? I have. Ever had a gasket at the valve leak because it was old and cracked, like maybe 5 years old even though the re-test date for the tank is 12 years from date of manufacture? I have. Did you have that leak catch fire then melt the plastic handscrew? I have. Have you ever had an old-school propane tank fail when tested after 12 or more years? Nope, me neither. That's why I want to hang on to my dear old 5# tank for as long as I can. Oh yes, I do use 20# at home and on big river trips, but the 5# is just perfect for so many uses I just don't want to scrap it until I have no choice. Thanks to the Buzzard community, I don't have to.
Don't Wanna Die Askin' for Another Chance