All the time, what I see scares me, what I don't see scares me more. Then again inspectors and contractors keep signing off on those certificates and reports.
Captain it doesn't appear to be a large iceberg...., then again only 10% of it's visible. John Drucker -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Chris Cahill Sent: Wednesday, April 02, 2008 1:29 PM To: [email protected] Subject: Do you look up? I imagine, like me, you all (ya'll for some of you) on the very rare occasions you are not working look around at sprinkler systems where you live, shop and play. It's a very rare occasion I don't see something that appears deficient. For example, in a grocery store the one head on the back side of the main is missing over HPS and a mess of piping creating a ceiling without heads under them, at a Home Depot 190 psi on the wet side of an auxiliary dry valve, or the local high school with sidewall heads about 15-20' down from the peak of the very large skylight. This is all in the last two days as an example but see similar all the time. The sad part is I'm not really trying. What if I had the plans and calcs, how much more would there be? Or really looked at the whole building instead of a casual look at where I happen to be? Or the scary part what if I actually considered the hazard vs. the design? I also realize two issues - most times what I see probably won't cause the system to fail in a fire IF that is the only thing wrong. There is a "probably" and an "if " in the last sentence which means there are cases that will fail, just not many IMHO. And second we make mistakes too. The heads at the peak - just because an AHJ didn't call it a deficiency doesn't mean it's OK. Certainly it is possible there is a documented and proactively approved alternate method out there on this but I strongly doubt it. Now I'm sure the missing head has a perfectly rational explanation of how it got like that. The W.O. is there and it must be plugged or the system is off. It's not a TI thing long after the original construction; this is a very new building. Can't rationalize how you get 190 psi by accident or approval. MN is more regulated than most (but not all) areas. Do you see this stuff too? What if anything can you really do about it? Chris Cahill, P.E. Fire Protection Engineer Sentry Fire Protection, Inc. 763-658-4483 763-658-4921 fax Email: [EMAIL PROTECTED] Mail: P.O. Box 69 Waverly, MN 55390 Location: 4439 Hwy 12 SW Waverly, MN 55390 _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field) CONFIDENTIAL AND PROPRIETARY: This email message is intended only for the use of the individual or entity to which it is addressed and may contain information that is privileged and confidential, nor is it, unless specifically stated, intended to be relied upon by any person or persons other than the individual or entity named above and no warranties or representations are made or intended to persons or entities not named above. If the reader is not the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please notify us immediately by telephone, return this message to the address above and delete all copies. Thank you. _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field)
