Do not shot me for this - but SFPE defines water supply adjustments/evaluations are the responsibility of the engineer of record for the project (item d below). See the white paper on the role of the engineer/technician for more details. Maybe we should allow or make the engineers do their job!
Water-based suppression systems: a) Selection of type of system and components b) classification of the hazard and commodities to be protected c) establish the density/flow and design area size d) determine and confirm the available water supply e) preliminary system layout and hydraulic calculations to verify adequacy of proposed water supply arrangements f) analysis to identify concerns regarding systems structural support (as appropriate) g) analysis to identify any concerns with water quality that would affect the proposed systems (as appropriate). John -----Original Message----- From: Sprinklerforum [mailto:[email protected]] On Behalf Of Brad Casterline Sent: Friday, June 20, 2014 3:01 PM To: [email protected] Subject: RE: to Pitot or not to Pitot? "...shall be made as appropriate." Define 'appropriate'. -----Original Message----- From: Steve Leyton [mailto:[email protected]] Sent: Friday, June 20, 2014 1:55 PM To: [email protected] Subject: RE: to Pitot or not to Pitot? It may well be a requirement, but back to my rhetorical question: who's actually doing it? SL -----Original Message----- From: Sprinklerforum [mailto:[email protected]] On Behalf Of Mark A. Sornsin, P.E. Sent: Friday, June 20, 2014 11:39 AM To: [email protected] Subject: RE: to Pitot or not to Pitot? Oh, and BTW, taking those seasonal/local/whatever fluctuations into account IS noted in NFPA 13 - so one could argue correctly that it is a requirement of "code" (assuming your code references NFPA 13). Mark A. Sornsin, P.E. | Karges-Faulconbridge, Inc. | Fire Protection Engineer | Fargo, ND | direct: 701.552.9905 | mobile: 701.371.5759 | http://www.kfiengineers.com -----Original Message----- From: Sprinklerforum [mailto:[email protected]] On Behalf Of Steve Leyton Sent: Friday, June 20, 2014 12:57 PM To: [email protected] Subject: RE: to Pitot or not to Pitot? How many people, when requesting or performing a flow test or flow model, specify that the values be measured at peak seasonal and peak day demands? How much fluctuation does a given water system or zone experience in a day/week/month/year? How many of us review those fluctuations and factor them into a flow test once it's taken? ______________________________________________________________________ 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 _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
