This is posted in reference to this thread; https://forums.mikeholt.com/threads/multiple-grounding-electrodes.2587932/. In reading the exception to 250.68(C)1 ('17NEC) if the interior piping meets the stipulation can the piping be used as a bonding conductor if the
piping does not qualify as an electrode (no portion in the earth)
piping does not qualify as an electrode (no portion in the earth)