I'm not seeing anything in NFPA 14 not allowing the concealment on standpipe piping. However, I feel this may create a problem with the 5 year dry standpipe system hydrostatic test required per NFPA25. 6.3.2.3 of NFPA25 states that inside standpipe piping shall show no leakage. If the piping is concealed, how does one determine if leakage is present? NFPA 13 allows either a drop in gauge pressure or visual leakage for the hydrostatic test of sprinkler systems, but 25 is not worded this way. Thoughts on whether this arrangement should be allowed? Maybe use supervised air?
Zach
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