Re: Water supply question

Wed, 09 Jul 2008 08:47:07 -0700 

Sounds like tank time (at least for the sprinkler)



At 11:17 AM 7/9/2008, you wrote:
Thanks! We will have a pump but...the water supply (gpm) seems too low for the demand especially factoring in hose allowance. 

David Bryan
fpii
-----Original Message-----
From: Todd Williams - FPDC <[EMAIL PROTECTED]>
To: [email protected]
Sent: Wed, 9 Jul 2008 10:55 am
Subject: Re: Water supply question
Without doing any engineering and no other information, I would say probably not. According to A.5.6.3, cartoned carpet tiles are a Group A plastic. The latex foam pads are another bundle of joy. 55psi may not be enough to handle the demand. More engineering is needed on this project to make an actual determination. (Disclaimer: my opinion only and may not have any basis in fact)Â 
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At 10:10 AM 7/9/2008, you wrote:Â
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>I am looking at a 25,000 sq foot former >manufacturing facility that is being renovated >and a wet system is being provided. A storage >area- 4700 sq ft. will contain rolled up rugs >(nylon type  and latex foam pads) that will be >stored on 12 foot high racks along with boxes of >water based adhesive and carpet tiles. The >storage area has a 20 foot high ceiling with >30â€Â steel joists and masonry constructioon. I >was told that by an outside source that FM >Global has design criteria for this type of material. >Problem is the water supply is 55 static and 45 >at 920 gpm residual. and 1808 gpm  at 20 psi >(this was projected by the water provider.). 
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>I am questioning whether this is enough water >for this type of hazard. Any thoughts? 
>Â
>David BryanÂ
>fpiiÂ
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Todd G. Williams, PEÂ
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Stonington, ConnecticutÂ
www.fpdc.comÂ
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Todd G. Williams, PE
Fire Protection Design/Consulting
Stonington, Connecticut
www.fpdc.com
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