LP Gas Fill ASME Tank possible overfill?

Agree just use some. You can release some if nervous.

Fill up today. New thing after half hour drive
got out and could smell propane. Fridge was beeping said No Fuel.

Reset fridge to LP went to yellow dot normal drove more next stop smell propane again outside

Checked tank opened closed big valve then found little valve above that was not all the way to the right. Turned it left and it hissed says it is the 80% thing. Hand turned it tight to the right seems to have fixed that.

He had a short rod tool for that as usual not sure what went wrong this time. Hope hand tight is ok.

Air cannot enter a tank that has been used and had LP in it. Doug

1. You cannot over pressurize the ASME tank.
2. It is normal for the fill nozzle to squirt/puff when removing the fill nozzle
3. The CORRECT procedure for filling all ASME tanks is to always open the 80% valve when filling. Your Tank DOES have a "80" percent liquid shut off valve. But they can still malfunction or allow slightly too much liquid into the tank
4. The small 80% valve is always opened and will spew vapor while filling. Its purpose during filling is to let you SEE if the tank has overfilled before the Auto shut off kicks in. When filling if you see liquid start to spew out that 80% valve you STOP the fill. Immediately. IF your filler stopped filling because the Auto shut off kicked off, you are OK. When full, it is normal for the 80% valve to then spew a little liquid.
5. I would leave the Shut off valve closed before driving and when you get home, open the valve and then run the Furnace or Water Heater for about 30 minutes. That will burn off any small excess liquid.
6. It is always not a good idea to travel with a freshly filled full ASME tank with the shut off valve open. The reason being when full and driving, the Liquid LP can slosh in the tank and then liquid can slosh out thru the cut off valve and get into the LP regulator which will cause the Rubber diaphragm to freeze and then the regulator will leak and have to be replaced. Doug

Next time you go get your BBQ tank filled, watch when the attendant unscrews the fill connector, there's about a 1 second puff of propane while it's disconnected. That's normal. How would air enter a tank when it's turned off.

what type of gloves were you wearing when you opened the '80% valve'?

It is highly unlikely that it is over filled. It should have been easy to tell the difference between vapor and a full stream of liquid. Normally the internal valve will shut the in flow off. I guess the valve could get stuck open or closed.