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  1. 13-09-2010 #11
    irving2008's Avatar
    Lives in NW London, gateway to A1 & M1, United Kingdom.
    irving2008
    Last Activity: 17-03-2017 Forum Superstar, has done so much to help others, they deserve a medal. Has been a member for 9-10 years. Has a total post count of 2,849. Received thanks 179 times, giving thanks to others 5 times. Referred 6 members to the community.
    Rubbish George... the air would not ignite anything... the mixture of oxygen and propane at 20:1 is highly explosive but wont explode unless its ignited.. by a spark.. its whats known as an explosive atmosphere... the point is that opening the valve will not replace any remaining gas in the cylinder ... gas travels from a higher pressure to a lower one... once its reached atmospheric the flow stops leaving traces of propane in the cylinder unless flushed out by something...

    you were just lucky... others might not be...
    Last edited by Lee Roberts; 13-09-2010 at 04:00 PM. Reason: added red to text and adjusted the size
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