You are. 13 states no leakage on hydrostatic test.
25 report leaks as deficiencies. Sometimes even Red Tag level as seen in tagging examples. At least as much as I can recall.. R/ Matt Please rate our customer service<https://survey.medallia.com/?emailsignature&fc=3539&bg=Fire%20and%20Fabrication> Matthew J. Willis, CWBSP, CET Engineering Designer IV FERGUSON FIRE DESIGN, LLC A Wholly Owned Subsidiary of Ferguson Fire & Fabrication, LLC 401 N 5th Street Suite 448 Wausau, WI 54403 C: 307-236-8249 [email protected]<mailto:[email protected]> www.FergusonFire.com<http://www.fergusonfire.com/> From: [email protected] <[email protected]> Sent: Wednesday, May 3, 2023 8:57 AM To: [email protected] Subject: [Sprinklerforum] Older dry pipe sprinkler systems Is there an acceptable leakage rate for an existing dry pipe system? A renovation of an (20 - 30 years) existing system was done to replace leaky piping, perform 200 PSI water pressure testing and installation of a Nitrogen generator. This was done 2 years ago and some new leakage has started. The owner has reached out to me to ask about the leakage rates. 2022 ed of NFPA 13 Chapter 29.2.2 outlines the Air Test requirements. I do not see any allowances in NFPA 13 for any leakage. I believe I will need to notify the owner to have a contractor investigate and repair. Am I missing anything in NFPA 13 or 25? Regards, G. Tim Stone G. Tim Stone Consulting, LLC NICET Level III Engineering Technician Fire Protection Sprinkler Design and Consulting Services 117 Old Stage Rd. - Essex Jct., VT. 05452 CELL: (802) 373-0638 [email protected]<mailto:[email protected]>
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