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Thread: How much GPM?

  1. #21
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    Quote Originally Posted by MColley View Post
    Why you would put a pump in your truck and then not be able to feed it with your tank seems a little pointless. Kind of defeating the purpose of having the pump I would think.
    The NFPA 1901 standard requires a 500 GPM minimum from the tank. If you're a municipal dept, with a 500 booster tank, flowing more than 500 GPM seems a little pointless for interior fire attack. It would be unsafe to sent people inside if fire required flows of that magnitude with such a small water tank. We teach our drivers to catch a hydrant before you start operating a second line.

    For years my Dept has only used 3" T2P lines. Now we're switching to 4" to allow a better blitz attack.
    The American people will never knowingly adopt Socialism. But under the name of 'liberalism' they will adopt every fragment of the Socialist program, until one day America will be a Socialist nation, without knowing how it happened. --Norman Mattoon Thomas, 6 time presidential candidate for the Socialist Party of America


  2. #22
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    [QUOTE=txgp17;1098734]The NFPA 1901 standard requires a 500 GPM minimum from the tank. If you're a municipal dept, with a 500 booster tank, flowing more than 500 GPM seems a little pointless for interior fire attack. It would be unsafe to sent people inside if fire required flows of that magnitude with such a small water tank. We teach our drivers to catch a hydrant before you start operating a second line.QUOTE]

    Thats a very good point if you don't have the water supply to warrant the larger pipeing why would you. However in a rual department situation where pressurized hydrants just don't exist. We would never put somethign in service with less than 750gal on it so having the larger pipeing just seems to make sense. We are limited on water supply so we try and bring as much as we can with us. We typicly 4 times a year practise tanker shuttles with all our mutual aid departments in which we strive to meet the reuirement of at least 500gpm uninterupted flow for 3 hours. Just as an fyi with the trucks set up they way we do here we typicly avarage 750gpm or better

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