I wouldn't go for 2" X 6"'s with a visqueen liner, but if you want 13-D water supply has always been the deal breaker. I guess there are tanks and there are tanks, but I'd look favorably on a substantial polyethylene tank.
Bruce Verhei > On May 13, 2016, at 07:32, Mark A. Sornsin, P.E. <[email protected]> > wrote: > > Tim, > > Ron is correct about the residential tank – NFPA-22 does not apply to 13-D > systems. > > As for the limits on tank materials, it is true that sec. 4.4 limits > materials to steel, wood, concrete, coated fabrics, and fiberglass-reinforced > plastic. > > However, there is always the equivalency clause in 1.4. The AHJ can approve > a tank that can be shown to have equivalency in quality strength, fire > resistance, effectiveness, durability and safety. Someone just has to provide > the documentation to the AHJ for their approval. > > My opinion only and not an official position of the NFPA-22 Technical > Committee. > > Mark A. Sornsin, P.E. | Karges-Faulconbridge, Inc. | Fire Protection Engineer > | Fargo, ND | direct: 701.552.9905 | mobile: 701.371.5759 | KFIengineers.com > > From: Sprinklerforum [mailto:[email protected]] > On Behalf Of Tim Stone > Sent: Friday, May 13, 2016 9:00 AM > To: [email protected] > Subject: Polyethylene Tanks > > Are there any requirements in NFPA 22 not allowing the use of Polyethylene > water storage tanks for residential or commercial sprinkler systems? These > tanks are installed above ground usually in Basements. > The local State agency is getting ready to adopt the 2013 edition of NFPA 22 > and I am being told NFPA 22 only permits Fiberglass. I don’t see where > Polyethylene is excluded. > > Thoughts please. > > Regards, > G. Tim Stone > > G. Tim Stone Consulting, LLC > NICET Level III Engineering Technician > Fire Protection Sprinkler Design > and Consulting Services > > 117 Old Stage Rd. - Essex Jct., VT. 05452 > CELL: (802) 373-0638 TEL: (802) 434-2968 Fax: (802) 434-4343 > [email protected] > > > ______________________________________________________________________ > This email has been scanned by the Symantec Email Security.cloud service. > For more information please visit http://www.symanteccloud.com > ______________________________________________________________________ > > ______________________________________________________________________ > This email has been scanned by the Symantec Email Security.cloud service. > For more information please visit http://www.symanteccloud.com > ______________________________________________________________________ > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
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