Thread: Cafs

  1. #1
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    Default Cafs

    My company just took delivery of a new CAFS Pumper. We've been training a bunch with and so far it's showed us some amazing things when it comes to knocking down fire. We've had a couple of bugs to work out, like problems with the transducer drawing static electricity from the TCM and throwing it out of whack, but hopefully those are behind us.
    Does anybody know any tricks we can use when it comes to CAFS ops?

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    We have had our CAFS unit for about 18 months and we think it is great. Have not had any troubles like you were talking about but would be interested in knowing what type of unit you have to compare too.
    Just keep on training and put the white stuff on the red stuff.
    Have caught some flack from other fire department that do not have an open mind about CAFS.
    I think you will soon see a lot more of this in the near future. Just glad we decided to go CAFS.

    Allen

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    When charging the line, have the engineer charge air first, then water (with foam turned on). This fills the hose with CAFS, if you charge water first you have to drag a line full of water (negating one of the advantages of CAFS, that being a light hose which is easy to drag). You just have to bleed the line a little more at the door.

    Use a stack tip with a 15/16" and 1 1/2" nozzle. Use the 15/16" to attack. If you need drier foam, pocket the 15/16 tip and use the wide bore. If you need wetter foam, just close the nozzle a tiny bit (enough to disrupt the stream and break the bubbles up, use this only when mopping up, not when attacking a fire).
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    Originally posted by Fire304
    When charging the line, have the engineer charge air first, then water (with foam turned on). This fills the hose with CAFS, if you charge water first you have to drag a line full of water (negating one of the advantages of CAFS, that being a light hose which is easy to drag). You just have to bleed the line a little more at the door.

    Use a stack tip with a 15/16" and 1 1/2" nozzle. Use the 15/16" to attack. If you need drier foam, pocket the 15/16 tip and use the wide bore. If you need wetter foam, just close the nozzle a tiny bit (enough to disrupt the stream and break the bubbles up, use this only when mopping up, not when attacking a fire).
    We've been running a CAFS pumper since 1994, and are big believers! The serial number on our system is "007"! Cool, huh?

    Our system (early Hale FoamPro) won't let us do the air first - the system monitors for foam solution flow before it will open the air valve. We just set up for CAFS right away. There is a lot of air in the line when we first open the ball valve on the nozzle - we just bleed it off.

    Our system has a manual proportioning valve for the foam solution vs. air mix. We can go from a real dry mix to a wet mix by just cranking a valve.

    In regards to nozzles, we use TFT combination nozzles with a pistol-grip/ball valve. When we use CAFS, which is pretty much for everything, we just unscrew the combination nozzle and stick it in our turnout coat pocket - essentially turning the pistol-grip/ball-valve that's left into a big smooth bore tip.

    The only thing we find that CAFS isn't good for is if you get a bad one that's already through the roof on arrival, and is putting up a strong thermal column. The CAFS stream simply doesn't have enough "mass", and you'll get big clouds of soap bubbles as big as the hood of a car floating out of the top of the fire! At that point, kill the air and just go with a foam/water combination. Glad to say it only happened to us once - it was one of those nights to remember!
    Last edited by KYChief350; 05-18-2003 at 12:05 AM.

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