Bill, Perhaps. I see a lot of hose thread adapters installed on wet pipe main drains. And there may be a legitimate purpose where the main drain piping is below grade and this serves as a low point drain, i.e. attach a hose to a floor drain to get the remaining water out. I also know that "people" use this as convenient way to take water, albeit improperly. Frankly I wouldn't drink out of this but the guy using this connection for whatever might decide to take a "sip" from the hose. Again keep in mind this would only apply where the fire protection water is from a non potable source pursuant to 2006 NSPC 10.2. "In buildings where dual water distribution systems are installed". My opinion on this is where the sprinkler system supply is taken from a non potable source such as a pond, tank, cistern, etc. In a building connected to a potable city water source the referenced code section would not apply.
Has everyone taken a close look at 2006 NSPC 10.5.9 ? However keep in mind that there are two significant requirements of 10.5.9 in the 2006 NSPC. 2006 NSPC 10.5.9 - Exception (3) "Where fire protection include a fire department connection, double check valve assemblies shall not be permitted." 2006 NSPC 10.5.9 - Exception (4) "Where fire protection are filled with solution that are considered to be health hazards as defined in Section 1.2, double check valve assemblies shall not be permitted." Backflow prevention and public health are apparently significant concerns, anyone who's built a home know the plumbing inspector checks for backflows on hose bibs. As to the IPC I don't know. John -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Brooks, Bill Sent: Friday, July 13, 2007 9:31 AM To: '[email protected]' Subject: RE: Backflow: Sprinkler System Identification John, what a reference! This means we should be adding these signs to our sprinkler system specifications. Would you say one of these signs should be provided at the termination of the inspector's test, at each drum drip on a dry system, and at various low point drains on our systems, etc, etc? This is a serious question - do you think this is the intent of 2006 NSPC 10.2? Is this same provision in the International Plumbing Code? Bill Brooks Pittsburgh, PA -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of John Drucker Sent: Friday, July 13, 2007 9:16 AM To: [email protected] Subject: RE: Backflow: Sprinkler System Indentification 2006 NSPC 10.2 Identification of Potable and Non Potable Water "In buildings where dual water distribution systems are installed, one potable and the other non-potable water, each system shall be identified by color marking or metal tags, or other appropriate methods such as may be approved by the authority having jurisdiction. Each outlet on the non-potable water line that may be used for drinking or domestic purposes shall be posted: DANGER-UNSAFE WATER." "Service and Background Color - Fire Protection = Red" John Drucker Fire Protection Subcode Official (AHJ) New Jersey _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field)
