Apr 21, 2009 #1 MaInspector Civil/Environmental Joined Apr 2, 2009 Messages 19 Location US How long should you flow water for during a forward flow test on a NFPA 13 system after you have acheved your desired gpm rate?
How long should you flow water for during a forward flow test on a NFPA 13 system after you have acheved your desired gpm rate?