NFPA 13 7.3.2.10 (2013) prohibits gridded dry systems. I am told at some point, maybe prior to 1980 that gridded dry systems might have been allowed? Does anyone know if, and if so when, gridded dry systems because prohibited?
Thanks Steve Cook TG Gallagher _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
