I can't seem to put my finger on it this morning but is there a minimum size requirement for the Riser in a 13 system? I know there is for the FDC connection and the underground main to the building but I don't see anything the limits the size of the Riser except the hydraulic calculations. In this particular job the FDC is located on the Riser so I assume the Riser would at least have to be 4" up to the FDC connection. Currently the civil drawing is show a 2" supply to the building from a 6" underground main....
Brian Harris, CET BVS Systems Inc. Sprinkler Division bvssystemsinc.com<http://bvssystemsinc.com/> Phone: 704.896.9989 Fax: 704.896.1935 _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
