I went to Menards tonight after we filled the tank with gas, so that I could get a fill on LP. The girl screwed the nozzle on the fill port and pulled the trigger, gas shot out the vent, so she tried ...
let me spell this out more clearly, the vent did not fall off, it was/is there in tact. She did turn it open a little to see if there was any gas in there which there was not, then she pulled the handle and propane shot out, but I could not see from where as I backed away. Maybe the gasket was missing on the nozzle, or like some said the bleeder valve is bad. I'm going to take it apart