Thread: Tandem Pumping

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    Default Tandem Pumping

    Does anyone have a picture or an illustration of a Tandem Pumping opeation? I need one for a class Thursday night and a search of the internet has been less than helpful.

    Thanks.
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    Would it be the same as relay pumping??? If so, I think I have a few.

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    Quote Originally Posted by FyredUp View Post
    Does anyone have a picture or an illustration of a Tandem Pumping opeation? I need one for a class Thursday night and a search of the internet has been less than helpful.

    Thanks.

    If you mean relay pumping... Check this pic out. The 2 engines in the back are relaying.. It's all I could find.


    http://www.d90.us/fire/03_April_09_I...d/P4030203.JPG
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    Or do you mean two engines being supplied off of one hydrant- Engine 1 has a hard sleeve from the plug into his steamer, and Engine 2 has a hard sleeve from Engine 1's opposite side steamer into Engine 2's steamer????? If this is what you mean I might have a pic somewhere....we did it several times on drills and once at an actual fire!!! It's not hard to do, just sounds more complicated than it really is.......

    (40" transfer main w/ pressures >100psi....more water than we could ever use.....)
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    Quote Originally Posted by FWDbuff View Post
    Or do you mean two engines being supplied off of one hydrant- Engine 1 has a hard sleeve from the plug into his steamer, and Engine 2 has a hard sleeve from Engine 1's opposite side steamer into Engine 2's steamer????? If this is what you mean I might have a pic somewhere....we did it several times on drills and once at an actual fire!!! It's not hard to do, just sounds more complicated than it really is.......

    (40" transfer main w/ pressures >100psi....more water than we could ever use.....)
    Tandem pumping is a short relay for the express purpose of boosting pressure.
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    Quote Originally Posted by TillamanTrk1 View Post
    If you mean relay pumping... Check this pic out. The 2 engines in the back are relaying.. It's all I could find.


    http://www.d90.us/fire/03_April_09_I...d/P4030203.JPG
    Cool picture but not the same thing.

    Are those foam trailers? That an engine would pump into to make foam for large incidents? If so can you get me some info and pics of those?
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    Quote Originally Posted by FIREMECH1 View Post
    Would it be the same as relay pumping??? If so, I think I have a few.

    FM1
    Short relay for boosting pressure.
    Crazy, but that's how it goes
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    Quote Originally Posted by FyredUp View Post
    Cool picture but not the same thing.

    Are those foam trailers? That an engine would pump into to make foam for large incidents? If so can you get me some info and pics of those?
    Well, this isn't actually my dept. But I have had the chance to mess with some of those trailers. They are pretty neat! heres a link for some info and videos.

    http://www.fire-pump.com/foamtrailer.html
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    http://www.fireengineering.com/artic...high-rise.html

    look halfway down the page with the two engines. captions say tandem pumping and Ill try to find some more


    here is another one

    http://images.pennnet.com/articles/f...ap_3fe0138.jpg
    Last edited by slicwinko; 02-15-2012 at 10:01 PM. Reason: added another link

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    Thanks guys. Between what was here and some other stuff I found I got what I need.
    Crazy, but that's how it goes
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    I see how it is! Get what you need and then just go!
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    Stay Safe and Well Out There....

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    Quote Originally Posted by Lewiston2FF View Post
    I see how it is! Get what you need and then just go!
    Of course, I will use you all to get what I need and then discard you like yesterday's trash!
    Crazy, but that's how it goes
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    Quote Originally Posted by CaptOldTimer View Post
    I saw that Cap...no pictue of the operation though...
    Crazy, but that's how it goes
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    Quote Originally Posted by FyredUp View Post
    I saw that Cap...no pictue of the operation though...
    You can always set up your apparatus, take several photos and add them to you presentation.
    Stay Safe and Well Out There....

    Always remembering 9-11-2001 and 343+ Brothers

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    I was taught that tandem pumping was what FWDbuff described, 2 pump inlets joined by a hard tube, sharing the water from one plug.
    Last edited by MEAN15; 02-16-2012 at 03:15 PM.

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    Quote Originally Posted by CaptOldTimer View Post
    THis is some good stuff!
    "....train as if your life depends on it, because one day it could.."
    .....Leather Head N6A
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    Quote Originally Posted by FyredUp View Post
    Of course, I will use you all to get what I need and then discard you like yesterday's trash!
    are you at least going to kiss us when you get done with us?
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    Quote Originally Posted by MEAN15 View Post
    I was taught that tandem pumping was what FWDbuff described, 2 pump inlets joined by a hard tube, sharing the water from one plug.
    what he said!!!

    Quote Originally Posted by FyredUp View Post
    Tandem pumping is a short relay for the express purpose of boosting pressure.
    I dont think we really have a name for this.....it's SOP around here, if it's a weak hydrant we put an engine on it, and every 1000' feet thereafter.....if we call it anything it's "relay pumping."
    "Loyalty Above all Else. Except Honor."

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    Quote Originally Posted by MEAN15 View Post
    I was taught that tandem pumping was what FWDbuff described, 2 pump inlets joined by a hard tube, sharing the water from one plug.
    Yep. You connect the first truck and start pumping, then close the hydrant enough to almost zero-out the compound gauge. Then you connect your other steamer to the second pumper via hard suction and open the hydrant all the way. Whatever water the first pumper doesn't use is automatically channeled into the second. (If your second steamer on the first truck is gated, you don't have to adjust the hydrant, but you better be careful opening that gate if you have very much showing on compound.)
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    AND I paraphrase (for brevity), from IFSTA Pumping Apparatus: Driver Operator Handbook 2nd Edition,

    Dual Pumping: Often incorectly referred to as tandem pumping, one strong hydant may be used to supply 2 pumpers...pumper 2 hooks to a large unused inlet of pumper 1 and makes use of the water not used by pumper 1

    Tandem Pumping: A form of a short relay with the engines close together, usually 300 or less. Tandem pumping is used when pressures higher than one engine can supply are needed. The supply engine pumps to the intake of the attack engine. Example if the supply engine pumps 150 psi to the attack engine and the attack engine adds 150 psi the dischage pressure will be 300 psi. Essentially the 2 engines become a series pump.

    Relay Pumping:If the water source is remote from the fire multiple engines are used to move the water fom the source to the fire. The supply engine feeds the next engine that boosts the pressue and sends it to the next, and so on until the water reaches the attack engine.
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    Arrrr! I stand corrected. Well, right procedure, wrong term. Heck, we don't have enough mojo in a hydrant around here to supply ONE pumper, so I don't expect to "dual" anything anytime soon.
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    Quote Originally Posted by EastKyFF View Post
    Yep. You connect the first truck and start pumping, then close the hydrant enough to almost zero-out the compound gauge. Then you connect your other steamer to the second pumper via hard suction and open the hydrant all the way. Whatever water the first pumper doesn't use is automatically channeled into the second. (If your second steamer on the first truck is gated, you don't have to adjust the hydrant, but you better be careful opening that gate if you have very much showing on compound.)
    Nope, according to IFSTA what you are describing is Dual Pumping.

    EDIT: Dang Dude you were faster on the reply button than me.
    Last edited by FyredUp; 02-16-2012 at 05:35 PM.
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    Quote Originally Posted by EastKyFF View Post
    Yep. You connect the first truck and start pumping, then close the hydrant enough to almost zero-out the compound gauge. Then you connect your other steamer to the second pumper via hard suction and open the hydrant all the way. Whatever water the first pumper doesn't use is automatically channeled into the second. (If your second steamer on the first truck is gated, you don't have to adjust the hydrant, but you better be careful opening that gate if you have very much showing on compound.)
    We don't have hard suction on my career dept. so we don't do it here. Although the acadamy was teaching the newboys to pump in series, which doesn't sound quite the same. They neglected to tell the guys on company that and had problems with the newboys causing too much pressure on the nozzle.

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    Interesting, I was familiar with FWD's version, not IFSTA's. In fact I think I still trust FWD more, but... my go to pumping book, (Isman) does in fact state as Fyred Up has shown.

    On my third edit now: Has anyone tried dual pumping with standard supply line between the pumps? "Layin' the Big Lines" by Paul Shapiro shows just that.
    Last edited by RFDACM02; 02-16-2012 at 06:10 PM.

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