Cecil and Forum: Sorry to read of your diappointment, Cecil - I feel, however, you are putting a few words in my mouth. What I was actually saying is: Based on Mr. Fleming's presentation in Seattle a few years ago, I continue to feel confident the systems I design for new homes do NOT pose a risk and/or hazard for owner/occupants. My memory may be a little "hazy", but I seem to recall Russ saying his presentation was based on two (or three) separate independent laboratory tests. I remember his - or my - comparison with the traditional 'fire triangle' (remove one component and no combustion/explosion).
I would prefer to put your statement like this: My confidence level is very high that my Client(s) will not experience an anti-freeze "event" so long as my designs are based on low pressure levels (Northern NM wells at 40 to 45 psi), 'k' factors at 4.9+ and glycerin concentrations at NTE/pre-mix 48% (all combined, not "either/or"). Using (FP) engineering judgement, AHJ "approval", historical data, New Mexico sprinkler success stories w/glycerin enets - I feel confident enough that I designed my own house using this approach. If my house blows up tommorrow, you will have been correct. But don't hold your breath. I am not suicidal, nor am I stupid (my words). If you think I had the slightest doubt and went ahead with an anti-freeze design for a billionaire's 28,000 sq. ft. house - glycerin THROUGHOUT/not just the attic - then I, too, am disappointed. When I see factual data that supports the contention that I should not be designing glycerin systems in any homes, I will stop said design and drain down the system in my own house. My position remains based on my (current) understanding of laboratory test results. If someone will correct me here: Am I to understand that (roughly) half-a-dozen 'events' over some 70+ years of anti-freeze installations is justification for eliminating all anti-freeze systems? Am I totally "out of the loop" in New Mexico? Or, do I recall a few of those (more recent) explosions were actually attributed to extremely high concentrations of glycol/glycerin?? Where are the "experts" that I expected to hear from - other than Cecil??? The life you save might be mine??? Regards to All- Jerry [email protected] Santa Fe, New Mexico _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
