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NFPA 13 D - Plumber Vs. sprinkler contractor

Question asked by msanders on Nov 30, 2017
Latest reply on Jan 5, 2018 by firesprinklerdesigns

For an open 13 D sprinkler system, do you require the installer to be both domestic plumber as well as sprinkler certified?  According to code neither one is supposed to touch the other system unless they are licensed.  Is there an exception that allows one or the other to make the final connection between the sprinkler and the domestic water supply (Toilet? line)

Thank you