Scenario: I left the KNOBS on my gas grill in the ON position. I turned OFF the VALVE on top of the propane tank.
Now when I turn propane tank to ON via the valve on top of it, it spews hissing gas out through the area where the valve screws into the top of the LP tank. It is coming out around the actual threads of that screw in valve.
Someone please explain what might have happened. Thanks.
(I am going to swap out the tank at the store where I got it, hopefully for free cause it was darn near full, but I am just very curious about what happened.)