The 3/4" pipe was allowed in pipe schedule systems prior to 1940. After that the minimum is 1"
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Lorrie Dierdorff Sent: Tuesday, January 16, 2007 1:16 PM To: [email protected] Subject: 3/4" steel pipe Was 3/4" steel pipe allowed back in the day? What year? Pre 1975? _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum
