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Underground piping

Question asked by henry.pariaman.pjb on Dec 11, 2017
Latest reply on Dec 11, 2017 by nocivus

Hi guys,

our 4 year ages power plant use HDPE underground pipe completely buried in soil and gravel on top,  several month ago we found leakage

is there any provision in NFPA that we must give priority not to use underground pipe rather than place it above ground?