Mutual Aid Fire


Heavy fire= heavy water
November 22, 2008, 3:07 pm
Filed under: Opinion

Heavy fire = a solid bore?!!!!

After some observations of fireground uses of 2 1/2 lines for advanced fire attack ect. I noted a pretty consistant thing…the use of the fog nozzle on the 2 1/2 handline!

spec_nozzle

While on a family trip to Orlando recently, I was watching the local news and observed a clip of a Firefighter working a 2 1/2 with a fog nozzle on a routine house fire. I thought “even as advanced & busy as OFD is they are, even they are stuck on the use of the old fogger” I have great respect for OFD and they obviosly are more “seasoned” on the whole fire thing than us small towners and this is not a dis to those brothers at all, we are VERY partial to the fog in these parts as well….I’m just saying….

Is it necessary to have a FOG nozzle on the 2 1/2 line?!

Is there a legitimate use(other than for exposure protection) for the FOG on our 2 1/2 handlines?!

Does that big ole master stream, RAM, or deck gun really need a fog on it?! (IE: Fog tip on the elevated master stream????)

…nah…

I have been shown and convinced that a solid bore is the ONLY nozzle needed for the “BIG LINE and BIG TIME”.

It seems to me, that when you break out the big guns you need big water, big reach, and big penetration. Not to mention the relief of less operating pressure, nozzle reaction, & nozzle fatigue. It’s not often that we use the big guns around these parts but when we do, I think we need to consider why we are pulling em’ off the truck in the first place. If it is to cover exposures it may be easier to switch out the fog over the solid…I’m just sayin’…

Crestview FD's bravest taking the easy route

Crestview FD's bravest taking the easy route

Just food for thought “work smarter not harder” that’s what I always try and live by!

(Notice I did not include the 1 3/4 on this one?…cause that is where the FOG has a home!)

DJ MAF

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1 Comment so far
Leave a comment

DJ,

Great points here. I agree with you 100% (well except with using the fog on an 1 3/4″, but that is another age-old argument). I guess I agree 99%.

At any rate, the fog nozzle on 2 1/2″ lines are a little counter-productive. More nozzle reaction, more resistance, more work for less water. The nozzle debate will go on forever, but simple mathematics and hydraulics state that it is not a good move in today’s manpower poor world.

Even in an exposure protection situation, a fog spray will not prevent heat from passing through it. The only way to prevent an exposure from lighting up is to apply water directly to the surface OR PUT OUT THE ORIGINAL FIRE (there is a concept)

The only instances that I could see a use is for a 2 1/2″ with a fog nozzle is during haz-mat situation. In that case, I could see wanting a big line for directing or suppressing vapors or if laying down a foam blanket.

Just my two cents.

Nate DeMarse
Co Owner, Brotherhood Instructors, LLC.
ndemarse@brotherhoodinstructors.com

Comment by Nate DeMarse




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