Originally Posted By: jpeck This post was automatically imported from our archived forum.
From the 2003 IRC.
P2904.8 Joint and connection tightness. Joints and connections in the plumbing system shall be gas tight and water tight for the intended use or required test pressure.
P2904.11 Threaded pipe joints. Threaded joints shall conform to American National Taper Pipe Thread specifications. Pipe ends shall be deburred and chips removed. Pipe joint compound shall be used only on male threads.
No specification for minimum number of threads required to be threaded in.