There is a concern about stagnant water as the water purveyors are charged by their regulating bodies to keep the municipal water safe AND esthetically (their words) pleasing. Stagnant water can taste and smell bad and so they do not want a backwash into the system. There is even some argument about the length of the dead ended lines on a tree with flow through for the mains (exceed X feet on one or more and backflow). RPs are an excessive (overkill) (nuclear option) approach to this problem. Read a lot of fear of lawsuit into the purveyors' decisions if they aren't requiring the most protection and a lot of input on what needs protection by the Watts and Ames and Febco and….
On Wed, Nov 3, 2010 at 2:01 PM, Gary Stites <[email protected]> wrote: > I am actually looking for your opinions as our water purveyors are asking us > for assistance and education... > > On Wed, Nov 3, 2010 at 1:51 PM, Gary Stites <[email protected]> wrote: > >> The water companies in our area are concerned about backflow prevention on >> 13D systems. With California adopting the IRC all the AHJ's are scrambling >> to put their spin on it! >> >> Anyway, what are the backflow concerns on a CPVC system that is not >> intertwined with the plumbing system? There is talk of requiring RP devices >> etc. Is a check-valve not sufficient? >> >> Thank You >> -- >> Gary Stites >> 661-213-9379 >> >> www.bakersfieldnbc.org/worshipteaminfo >> www.wgt.com/clubs/the_lookouts/default.aspx >> www.sprinklersoft.net >> Pandora Station http://www.pandora.com/?sc=sh43464983213902734 >> >> > > > -- > Gary Stites > 661-213-9379 > > www.bakersfieldnbc.org/worshipteaminfo > www.wgt.com/clubs/the_lookouts/default.aspx > www.sprinklersoft.net > Pandora Station http://www.pandora.com/?sc=sh43464983213902734 > _______________________________________________ > 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) > -- Ron Greenman Instructor Fire Protection Engineering Technology Bates Technical College 1101 So. Yakima Ave. Tacoma, WA 98405 [email protected] http://www.bates.ctc.edu/fireprotection/ 253.680.7346 253.576.9700 (cell) Member: AFSA, SFPE, ASCET, NFPA, NFSA, AFAA, ASEE, NIBS, WSAFM, WFC They are happy men whose natures sort with their vocations. -Francis Bacon, essayist, philosopher, and statesman (1561-1626) _______________________________________________ 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)
