[AT] OT - AFFF Fire Foam Unit

[Steve W.]

Dan Folske wrote:
> We have a CAF unit on one of our small trucks that sucks foam concentrate 
> from a 5 gallon bucket and injects it into the water stream along with 
> compressed air from a small engine driven compressor. Our main pumper 
> carries a siphon unit which can be put into a 1 1/2 inch line to suck 
> concentrate from a bucket and then you put a foam nozzle on the end of the 
> attack hose. The foam nozzle has vents which pull air into the water foam 
> mix creating the foam bubbles. The CAF unit adds a greater volume of air and 
> seems to provide a more uniform bubble size. Each additional trapped air 
> bubble is another layer of insulation. I don't recall offhand what we're 
> running for air pressure or volume but it is not extreme. I'll look tomorrow 
> if I get the chance.
> 
> None of the small departments around here use nitrogen. I would suspect that 
> the nitrogen might be better in some circumstances with volatile fuels and 
> confined spaces but for our use plain compressed air or natural aspiration 
> works fine.
> 
> Dan Folske
> Assistant Fire Chief
> Bowbells Volunteer Fire Department
> 
> There maybe a professional firefighter on the list that can provide you with 
> more details.
>
Dan,

ALL firefighters are Professionals. Some just draw a paycheck.

I was looking at your web site and noticed the courses you have. I know
most of them but what is the S130 , S190 ?

-- 
Steve W.
Captain, EMT, Fire Police
Van Hornesville Fire Dept.