Typically if you're not touching the old system it can stay in place as-is. BUT if they want to modify it and try to change from wet to dry (good luck with that) then it's game over and it has to meet current codes. The whole idea of grandfathering in non-compliant systems is a misnomer.
Plus the big thing, how can you prove the system will function when changing from wet to dry without calculating it? Besides, when did the owner become a code and fire protection expert? You just gotta love it. Craig L. Prahl, CET Fire Protection Specialist Mechanical Department CH2MHILL Lockwood Greene 1500 International Drive Spartanburg, SC 29304-0491 Direct - 864.599.4102 Fax - 864.599.8439 [email protected] http://www.ch2m.com -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Todd Williams Sent: Wednesday, August 11, 2010 12:14 PM To: [email protected] Subject: pipe schedule and storage I think I have this one, but could use a little more ammo. I walked through an old mill building this morning with an old OH pipe schedule system. (They want to convert from wet to dry). In the building, they have some 8 ft storage of a Group A plastics in cardboard cartons and well as 2 piles of idle pallets to 8 ft. The owner is claiming that the pipe schedule is grandfathered and the system does not need to meet the hydraulic criteria. I disagree and am basing most of my argument on the water supply requirements in 11.2.2 (NFPA 13, 2002 edition). Any other thoughts? Todd G. Williams, PE Fire Protection Design/Consulting Stonington, CT 860.535.2080 www.fpdc.com _______________________________________________ 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)
