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Underground piping requirements as per NFPA

Question asked by istiaque.emcs on Feb 9, 2020
Latest reply on Mar 1, 2020 by istiaque.emcs

Hi All Its Istiaque from Bangladesh. In one project where from fire pump room to building fire main pipe have to run beneath the ground, I have read in some articles that microbiologically influences corrosion happens in underground pipe if steel pipe is used. 

Can anyone please suggest me what type of pipe can be used to avoid this. Expecting suggestion as per NFPA code. 

Thanks In advance.

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