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  1. #1
    Junior Member
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    Nov 2003
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    Linden Arizona
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    Post Fire extinguisher size? Trivia!

    Why is a 1A fire extinguisher 1-1/4 gallons and not just 1 gallon?


  2. #2
    Member IJHumberson's Avatar
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    Oct 2000
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    In West Va.
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    Question OK, I'll take a stab at it...

    Is it because the "vintage" water/liquid extinguishers were soda/acid extinguishers and they had to have the extra quart for the acid solution that got mixed with the sodium solution in order to start the chemical reaction that propelled the liquid from the extinguisher??
    An ounce of prevention is worth a pound of cure!

  3. #3
    Junior Member
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    Nov 2003
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    Linden Arizona
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    Exclamation We really don't know!

    This is a trivia question that a Asst. Chief gave to a booter class and they haven't been able to find out. Needless to say neither has anyone else including our other officers.

    We did come up with one answer: The siphon tube does not reach the bootom of the extinguisher and you loose approx. .25 gallon in the bottom that can not be expelled. This answer seems logical but we have not been able to confirm it as the reason. The previous response makes sense as well.

    If anyone has an answer please post! Anyone that can affirm either of these two answers please let us know!

  4. #4
    MembersZone Subscriber
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    Jan 2003
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    Los Alamos, New Mexico, USA
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    Talking

    One possibility is that the extinguishers were originally made in the UK, and the UK gallon is bigger than the U.S gallon.

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