I seem to remember somewhere in NFPA 13 that the minimum size for U/G piping was 6" for ordinary hazard systems. Now someone wants chapter and verse and I'll be darned if I can find It.
Richard L. Mote CET Design Manager Rowe Sprinkler Systems, Inc. P 570-837-7647 or 877-324-ROWE F 570-837-6335 [email protected] _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
