Todd, What about CAF?
On 2/11/08, Todd Williams - FPDC <[EMAIL PROTECTED]> wrote: > I will confess that I have never done a High-X system, but with the > relative small size of the building, the racking and the arrangement > of exits, I would be concerned from a life-safety standpoint about > it. If we use the pre-primed design, we would be OK with the water > supply. With the standard arrangement, we are right at the maximum > point that the water company will allow. > > > At 06:41 PM 2/11/2008, you wrote: > >Have you considered High-X foam if your water supply is challenged? > > > >Thom McMahon > >Firetech, Inc. > >2560 Copper Ridge Dr > >Steamboat Springs, CO 80488-2136 > >Tel: 970-879-7952 > >Fax: 970-879-7926 > >----- Original Message ----- From: "Todd Williams - FPDC" <[EMAIL PROTECTED]> > >To: <sprinklerforum@firesprinkler.org> > >Sent: Monday, February 11, 2008 3:48 PM > >Subject: RE: pre-primed foam system. > > > > > >>Chemical storage warehouse. > >> > >>At 04:53 PM 2/11/2008, you wrote: > >>>Check with your foam supplier on the life of the foam. Not all will > >>>last 3 years and life span can depend on the water quality too. > >>> > >>>Again check with the supplier on the galvanized. Some of the foams > >>>react with Galvanized at certain concentration levels. Usually it's not > >>>a problem for foam-water systems as the foam isn't in the pipe for a > >>>long duration of time. > >>> > >>>Also don't forget to check about containment. In some jurisdictions this > >>>type of discharge has to be contained and removed as hazardous waste. > >>> > >>>What are you trying to protect? > >>> > >>> > >>>Craig L. Prahl, CET > >>>Fire Protection Group > >>>Mechanical Department > >>>CH2MHILL > >>>Lockwood Greene > >>>1500 International Drive > >>>PO Box 491, Spartanburg, SC 29304-0491 > >>>Direct - 864.599.4102 > >>>Fax - 864.599.8439 > >>>[EMAIL PROTECTED] > >>>http://www.lg.com > >>> > >>> > >>>-----Original Message----- > >>>From: [EMAIL PROTECTED] > >>>[mailto:[EMAIL PROTECTED] On Behalf Of Todd > >>>Williams - FPDC > >>>Sent: Monday, February 11, 2008 4:40 PM > >>>To: sprinklerforum@firesprinkler.org > >>>Subject: pre-primed foam system. > >>> > >>>I am designing a foam system to be fed from a limited volume public > >>>water supply. NFPA 16 mentions a pre-primed foam system with significant > >>>decreases in demand. I spoke to someone who knows foam and he said that > >>>the system is filled with the foam-water mixture instead of just water > >>>(and the foam mixed in at the riser). The biggest problem being that the > >>>mixture breaks down over time, so it ends up as pretty much dirty water. > >>>My questions are this: Has anyone worked with this type of system > >>>before? I was thinking recommending a three year pre-priming schedule, > >>>does this make sense? If the pipe is going to contain a mixture > >>>full-time, should it be galvanized? The difference in using could be > >>>the difference between a pump and tank for a 12,000 sqft warehouse. > >>> > >>>Todd G. Williams, PE > >>>Fire Protection Design/Consulting > >>>Stonington, Connecticut > >>>www.fpdc.com > >>>860.535.2080 > >>>_______________________________________________ > >>>Sprinklerforum mailing list > >>>Sprinklerforum@firesprinkler.org > >>>http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum > >>> > >>>To Unsubscribe, send an email > >>>to:[EMAIL PROTECTED] > >>>(Put the word unsubscribe in the subject field) > >>>_______________________________________________ > >>>Sprinklerforum mailing list > >>>Sprinklerforum@firesprinkler.org > >>>http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum > >>> > >>>To Unsubscribe, send an email to:[EMAIL PROTECTED] > >>>(Put the word unsubscribe in the subject field) > >>Todd G. Williams, PE > >>Fire Protection Design/Consulting > >>Stonington, Connecticut > >>www.fpdc.com > >>860.535.2080 > >>_______________________________________________ > >>Sprinklerforum mailing list > >>Sprinklerforum@firesprinkler.org > >>http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum > >>To Unsubscribe, send an email to:[EMAIL PROTECTED] > >>(Put the word unsubscribe in the subject field) > >_______________________________________________ > >Sprinklerforum mailing list > >Sprinklerforum@firesprinkler.org > >http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum > > > >To Unsubscribe, send an email to:[EMAIL PROTECTED] > >(Put the word unsubscribe in the subject field) > > Todd G. Williams, PE > Fire Protection Design/Consulting > Stonington, Connecticut > www.fpdc.com > 860.535.2080 > _______________________________________________ > Sprinklerforum mailing list > Sprinklerforum@firesprinkler.org > http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum > > To Unsubscribe, send an email to:[EMAIL PROTECTED] > (Put the word unsubscribe in the subject field) > -- Ron Greenman at home.... _______________________________________________ Sprinklerforum mailing list Sprinklerforum@firesprinkler.org http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field)
