Based on what, specifically?
Steve -------- Original message -------- From: tcfire <tcf...@bellsouth.net> Date: 12/21/17 5:54 AM (GMT-08:00) To: sprinklerforum@lists.firesprinkler.org Subject: RE: Corrosion Seems to make a great argument for nitrogen infusion. Sent from my Sprint Samsung Galaxy S7. -------- Original message -------- From: Steve Leyton <st...@protectiondesign.com> Date: 12/20/17 8:51 PM (GMT-05:00) To: sprinklerforum@lists.firesprinkler.org Subject: RE: Corrosion The fact that the adjacent systems haven’t leaked is not surprising – we’re working on remediation of three large buildings right now where only one of the three systems in each has demonstrated corrosion outwardly through pinhole leaks. When we scoped the systems, all of them showed aggressive corrosion related to MIC, but only one had advanced to the degree that the pipe was beginning to fail. None of the nine systems we’re working with show ANY external signs of the advanced damage we found inside. Someone else mentioned on this thread that resolving leaks in that one system was regularly introducing fresh oxygen and that’s true; it may explain why it’s more advanced than the others. [Steve Signature (3)] From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On Behalf Of Roland Huggins Sent: Wednesday, December 20, 2017 3:51 PM To: sprinklerforum@lists.firesprinkler.org Subject: Re: Corrosion I’m relying on Lucas to correct any statement that are just wrong but - predicting corrosion is a lot like predicting a medical disease. We know a lot of facts that affect the issue but there’s a SH factor that’s not yet quantifiable. SH = Stuff Happens After seven events, why haven’t they pursued active mitigation? Roland Roland Huggins, PE - Senior VP Engineering American Fire Sprinkler Assn. Dallas, TX http://www.firesprinkler.org<http://www.firesprinkler.org/> Fire Sprinklers Saves Lives On Dec 20, 2017, at 2:37 PM, Mike Hairfield <fsl...@msn.com<mailto:fsl...@msn.com>> wrote: Trying to explain to the owner why it's happened seven (7) times on the same system has been a problem.
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