A Fire Department Connection (FDC) is “A connection through which the fire department can supplemental water into the sprinkler system, standpipe, or other system, furnishing water for fire extinguishment to supplement existing water supplies.” FDCs are required on all standpipe systems per NFPA 14, Standard for the Installation of Standpipe and Hose Systems, and sprinkler systems per NFPA 13, Standard for the Installation of Sprinkler Systems. In 2007, the Technical Committee for NFPA 14 added the requirement for one 2 ½ inch inlet per every 250 gallons per minute (gpm), but this requirement lacks supporting scientific documentation, so there was...