Wow. Did they fail after an extended period of the systems missing ITM? The only problems I've seen had to do with dual feed systems, with one feed shut off.
bv ----- Original Message ----- From: "Dwight Havens" <[email protected]> To: [email protected] Sent: Tuesday, July 23, 2013 4:32:52 PM Subject: Re: SIGN for Backflow Prevention Assembly Forward Flow Test Yes, yes, and yes. The original proposal was based on observed failures of BFPAs to operate properly during main drain testing. Glendale, AZ public library specifically comes to mind. Dwight ________________________________ From: Todd Williams <[email protected]> To: "[email protected]" <[email protected]> Sent: Monday, July 22, 2013 9:32 PM Subject: Re: SIGN for Backflow Prevention Assembly Forward Flow Test Has there ever been an instance of system failure due to the backflow not properly opening? How about detection of a BFP problem during a full flow test. How about something subsequent to the initial acceptance? Todd G Williams, PE Fire Protection Design/Consulting Stonington, CT 860-535-2080 www.fpdc.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
