Not a truck driver, growing up my favorite uncle drove fuel tankers out of FL. he was a very cautious and safe driver....I have no doubt he would have praised Joel for this information, especially if it might save you for an inspection failure....who needs a failure???
Yeah, I checked mine and it would have failed. Was going to replace the valve till I saw the price. It was a very easy fix! They even sell rebuild kits which I will order to keep in the truck.