If you can have a well with sufficient refresh and capacity, you can oversize the well pump and have a reliable water supply which fulfills either (1) or (4) depending on semantics/definitions. And what's APPROVED. We happened across a 36" diam well with 3,000 gal in it, oversized the well pump, connected it to the sprinklers and a new gang bath in this housing project, and saved the customer $25,000.
My understanding is the same as Cliffs, but upon re-reading the original text, no-it does NOT say that a FIRE pump must be used, just that IF you install a fire pump, do it per #20. Betcha that wasn't the intent of the committee. George Church' Rowe Sprinkler [email protected] 570-837-7647 -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of David Blackwell Sent: Thursday, January 13, 2011 4:58 PM To: [email protected] Subject: 2010 NFPA 13R 9.3 The code text in 2010 NFPA 13R 9.3 mentions only "pump", not "fire pump" as the minimum standard requirement. Is that correct? [I read the commentary to both 9.3 and 9.4 and began to doubt whether a non-fire pump could be used. It is clear that 9.4 code requires, where used, a fire pump must meet NFPA 20; however, I don't read 9.3 as actually requiring a fire pump be used to meet the "pump" indicated in 9.3(1) or 9.3(4).] Perhaps my brain will work better in the morning while still fresh... Respectfully, David W. S. Blackwell, II, PE, CFPE Engineering ---------------------------------------------------------------- Office of State Fire Marshal 141 Monticello Trail Columbia, SC 29203 Phone: 803.896.9833 Fax: 803.896.9806 Email: [email protected] OSFM Website: http://www.llr.state.sc.us/firemarshal.asp ---------------------------------------------------------------- _______________________________________________ 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)
