Oh yeah, you need dope from the people who install fueling stations. Gasoline, 
but I’ve been to the fire at owner-operator gas station. Saved himself a few 
dollars fixing a leak in a dispenser. Dope like you’d buy from Home Depot. When 
fire happened others safety systems worked and original fire probably was only 
a couple gallons. That was adequate to burn the Corvette that had less than a 
thousand miles since it left the lot. That was enough to destroy the canopy. 
Corvette owner was fine if initially a little scared from initial Poof. 

Did insurance company pay? I don’t know.

Best.


> On 11/20/2020 7:50 PM Kenneth Berman via Sprinklerforum 
> <[email protected]> wrote:
> 
>  
> steel fuel lines are good. Use super dope, no tape. NFPA used to require a
> check valve in the fuel return, I still put it in the line. Old habits.
> 
> On Fri, Nov 20, 2020 at 5:07 PM BRUCE VERHEI via Sprinklerforum <
> [email protected]> wrote:
> 
> > I’m mostly impressed you have an owner who cares.
> >
> > Best.
> >
> > Bruce Verhei
> >
> > > On 11/20/2020 4:19 PM Kyle.Montgomery via Sprinklerforum <
> > [email protected]> wrote:
> > >
> > >
> > > Our standard for diesel fire pumps is to provide a double-wall fuel tank
> > with leak detection, steel supply and return fuel lines, and of course the
> > connection at the diesel engine is generally a flexible connection provided
> > with the diesel engine from the manufacturer.
> > >
> > > Anybody doing anything different?
> > >
> > > Any particular problems with leaks?
> > >
> > > I've got a client who is particularly concerned about mitigating fuel
> > leaks, but in my experience there is little reason to be concerned about
> > leaks with this arrangement. The client is asking me to look at using the
> > special Kynar double wall pipe made by Flexworks. I guess the advantage is
> > that you would have less connections because it would bend rather than use
> > fittings (90s), but it looks like it would be more easily-damaged than
> > steel pipe. Anyone have experience with this or something similar?
> > >
> > > We've also discussed possibly adding a curb below the fuel tank to catch
> > leaks, but what if the leak occurs in the line closer to the diesel engine
> > (outside of the curb)? The curb is useless at that point.
> > >
> > > I feel like the standard method is pretty effective and that any of this
> > other stuff has seriously diminished return value, but I'd be interested to
> > hear from the audience.
> > >
> > > -Kyle M
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> > > [email protected]
> > >
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