This may be old news to a lot of you. Bottles 5 to 10 years old have a
valve that will not close after the appliance is disconnected. I used
an older bottle and when the torch was unscrewed I could hear a hiss. I
checked my stock and found a total of 5 that leaked. Yes, I had a lot.
Earthquake kit. I live in San Francisco. There was a recall approx. in
'12. Worthington no longer stands behind them. They made them for many
lables. Get them outside away from any ignition source.
CP