Perfect! Thanks Reed. Ed
> -----Original Message----- > From: [email protected] [mailto:sprinklerforum- > [email protected]] On Behalf Of Reed Roisum > Sent: Thursday, March 11, 2010 9:37 AM > To: [email protected] > Subject: RE: Backflow protection on antifreeze system > > Ed, > > 2006 IPC 608.16.4.1 Additives or nonpotable source. > > Where systems under continuous pressure contain chemical additives or > antifreeze, or where systems are connected to a nonpotable secondary > water supply, the potable water supply shall be protected against > backflow by a reduced pressure principle backflow preventer. Where > chemical additives or antifreeze are added to only a portion of an > automatic fire sprinkler or standpipe system, the reduced pressure > principle backflow preventer shall be permitted to be located so as to > isolate that portion of the system. Where systems are not under > continuous pressure, the potable water supply shall be protected against > backflow by an air gap or a pipe applied atmospheric vacuum breaker > conforming to ASSE 1001 or CSA B64.1.1. > > > I don't see any exceptions?? Hope this helps. > > > Reed A. Roisum, CET > Fire Protection > > Ulteig Engineers, Inc. > 3350 38th Avenue S. > Fargo, ND 58104 > 701.280.8580 direct > 701.212.8810 cell > www.ulteig.com > > Energy | Water | Built-Environment > > CONFIDENTIAL COMMUNICATION: Emails from this company normally contain > confidential and privileged material, and are for the sole use of the > intended recipient. Use or distribution by an unintended recipient is > prohibited, and may be a violation of law. If you believe that you > received this in error, please do not read the body of this e-mail and > please inform the sender that you have deleted the e-mail and any > copies. Thank you. > > > -----Original Message----- > From: [email protected] [mailto:sprinklerforum- > [email protected]] On Behalf Of Ed Kramer > Sent: Thursday, March 11, 2010 10:23 AM > To: [email protected] > Subject: Backflow protection on antifreeze system > > Anybody have a 2006 International Plumbing Code handy? > > > > I have a client who wants to use glycerine in a small antifreeze system. > Nothing unusual about that. But he claims that by using food-grade > glycerine he doesn't need an RP BFP and the associated expansion tank. > I > disagree, but don't have code references to back it up. The 2006 IPC > is > applicable. > > > > Thanks in advance! > > > > Ed Kramer > > Kramer Design, LLC > > Littleton, CO > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > > For Technical Assistance, send an email to: [email protected] > > To Unsubscribe, send an email to:Sprinklerforum- > [email protected] > (Put the word unsubscribe in the subject field) > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > > For Technical Assistance, send an email to: [email protected] > > To Unsubscribe, send an email to:Sprinklerforum- > [email protected] > (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field)
