I have calc'd 13d systems with 1" lines. One thing that I have seen to watch out for is the water meter that is put on the line. Occasionally, a 1" water line will end up necked down to a much smaller water meter that cannot flow adequate water for a sprinkler system.
Matt Grisé PE*, LEED AP Sales Engineer Alliance Fire Protection *Licensed in KS & MO 913.888.0647 ph 913.888.0618 f 913.927.0222 cell www. AFPsprink.com -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Steve Kowkabany Sent: Tuesday, March 16, 2010 7:54 AM To: [email protected] Subject: Size of Residentail Water Taps, Fees, Meters, and Backflow Preventers The fire department and local water utility of Jacksonville are currently working together to figure out what will be required for the new residential sprinkler requirement. I've been invited to participate and they are looking to me to provide some guidance on what will be required for each new single family home in terms of water hookups to accommodate a new 13D system. Somehow, the water department got the idea that they will need 2" taps for each house. I know that is way too big, but I am curious - what have you been seeing for line sizes for single family homes? Also, has it typically been a single line or two separate taps. I would think that a 1" service would suffice for a two head calc and max flow of 30 gpm or so with average water supplies. It's pretty flat here and this utility is fairly consistent with water supplies that test at 60/50 at 1,000 gpm or so. I'm also curious about any special meter requirements, backflow requirements, or tap fees that your area is implementing. Any feedback would be great appreciated and helpful for us in setting the course for what will hopefully be the beginning a new era in Florida where each new house is sprinklered. Thanks for your help, Steve Kowkabany, P.E. Fire Protection Engineer Neptune Fire Protection Engineering LLC 60 Ocean Boulevard, Suite 15 Atlantic Beach, FL 32233 904-652-4200 Phone 904-212-0868 Fax _______________________________________________ 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) _______________________________________________ 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)
