Plenty of buildings never have fires.  Not a reason to ignore it.  Not saying 
its the sole driving factor but a consideration.  It is something that the 
standards need to address.  We’ll see what happens.


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 Feb 19, 2018, at 11:45 AM, Prahl, Craig/GVL <craig.pr...@ch2m.com> wrote:
> 
> I've seen them but they weren't from the pipe, they were typically from some 
> yahoo tossing junk into an open pipe the never got cleaned or flushed out.
> 
> Not saying it couldn't happen but there are plenty of 40-50+ year old 
> installations that never had any indication of delamination of the cement 
> lining.
> 
> 
> Craig L. Prahl 
> Fire Protection Group Lead/SME
> Direct - 864.920.7540
> Fax - 864.920.7129
> Direct Extension  77540
> CH2M is now Jacobs.
> 200 Verdae Blvd.
> Greenville, SC  29607
> craig.pr...@ch2m.com <mailto:craig.pr...@ch2m.com>
> http://www.jacobs.com <http://www.jacobs.com/>
> 
> -----Original Message-----
> From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org 
> <mailto:sprinklerforum-boun...@lists.firesprinkler.org>] On Behalf Of Roland 
> Huggins
> Sent: Monday, February 19, 2018 2:40 PM
> To: sprinklerforum@lists.firesprinkler.org 
> <mailto:sprinklerforum@lists.firesprinkler.org>
> Subject: Re: Underground Dry System Pipe Type [EXTERNAL]
> 
> Dont think NEW but old and decrepit (like me - lol).  AM I the only one that 
> has seen pieces of concrete captured when flushing systems or doing water 
> flow tests?
> 
> 
> Roland Huggins, PE - Senior VP Engineering
> American Fire Sprinkler Assn.    
> Dallas, TX
> http://www.firesprinkler.org <http://www.firesprinkler.org/> 
> <http://www.firesprinkler.org/ <http://www.firesprinkler.org/>>
> 
> Fire Sprinklers Saves Lives
> 
> 
> 
> 
>> On Feb 19, 2018, at 11:16 AM, Prahl, Craig/GVL <craig.pr...@ch2m.com 
>> <mailto:craig.pr...@ch2m.com>> wrote:
>> 
>> Why would there be chunks of cement?
>> 
>> 
>> Craig L. Prahl
>> Fire Protection Group Lead/SME
>> Direct - 864.920.7540
>> Fax - 864.920.7129
>> Direct Extension  77540
>> CH2M is now Jacobs.
>> 200 Verdae Blvd.
>> Greenville, SC  29607
>> craig.pr...@ch2m.com <mailto:craig.pr...@ch2m.com> 
>> <mailto:craig.pr...@ch2m.com <mailto:craig.pr...@ch2m.com>> 
>> http://www.jacobs.com <http://www.jacobs.com/> <http://www.jacobs.com/ 
>> <http://www.jacobs.com/>>
>> 
>> -----Original Message-----
>> From: Sprinklerforum 
>> [mailto:sprinklerforum-boun...@lists.firesprinkler.org 
>> <mailto:sprinklerforum-boun...@lists.firesprinkler.org> 
>> <mailto:sprinklerforum-boun...@lists.firesprinkler.org 
>> <mailto:sprinklerforum-boun...@lists.firesprinkler.org>>] On Behalf Of 
>> Roland Huggins
>> Sent: Monday, February 19, 2018 1:54 PM
>> To: sprinklerforum@lists.firesprinkler.org 
>> <mailto:sprinklerforum@lists.firesprinkler.org> 
>> <mailto:sprinklerforum@lists.firesprinkler.org 
>> <mailto:sprinklerforum@lists.firesprinkler.org>>
>> Subject: Re: Underground Dry System Pipe Type [EXTERNAL]
>> 
>> Dont you worry about the inevitable chunks of cement becoming a problem. 
>> 
>> Roland
>> 
>> 
>> Roland Huggins, PE - Senior VP Engineering
>> American Fire Sprinkler Assn.    
>> Dallas, TX
>> http://www.firesprinkler.org <http://www.firesprinkler.org/> 
>> <http://www.firesprinkler.org/ <http://www.firesprinkler.org/>> 
>> <http://www.firesprinkler.org/ <http://www.firesprinkler.org/>>
>> 
>> Fire Sprinklers Saves Lives
>> 
>> 
>> 
>> 
>>> On Feb 19, 2018, at 9:35 AM, Prahl, Craig/GVL <craig.pr...@ch2m.com> wrote:
>>> 
>>> Cement lined ductile iron.  If you use standard DI, and a standard 
>>> atmospheric sourced air compressor you can have rust and scaling buildup 
>>> with ambient air inside pipe in contact with cooler ground temps.
>>> 
>>> How are you going to slope underground pipe back to an aboveground valve 
>>> room?  Basement level valve room?
>>> 
>>> 
>>> Craig L. Prahl
>>> Fire Protection Group Lead/SME
>>> Direct - 864.920.7540
>>> Fax - 864.920.7129
>>> Direct Extension  77540
>>> CH2M is now Jacobs.
>>> 200 Verdae Blvd.
>>> Greenville, SC  29607
>>> craig.pr...@ch2m.com
>>> http://www.jacobs.com
>>> 
>>> -----Original Message-----
>>> From: Sprinklerforum
>>> [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On Behalf Of 
>>> Reed A. Roisum, SET
>>> Sent: Monday, February 19, 2018 12:11 PM
>>> To: sprinklerforum@lists.firesprinkler.org
>>> Subject: Underground Dry System Pipe Type [EXTERNAL]
>>> 
>>> I asked a similar question a number of years ago and it appears as though 
>>> the consensus at that time was that dry-pipe system underground pipe should 
>>> be ductile iron.  We have an application where the dry-pipe system leaves 
>>> the valve room and goes underground and then extends above ground.  Is 
>>> ductile iron the best option for the underground portion? We are able to 
>>> slope to drain back to the valve room.
>>> 
>>> Thank you.
>>> 
>>> Reed Roisum
>>> 
>>> 
>>> Reed A. Roisum, SET | Karges-Faulconbridge, Inc. | Senior Fire 
>>> Protection Designer | Fargo, ND | direct: 701.552.9903 | mobile:
>>> 701.388.1352 | KFIengineers.com<http://www.kfiengineers.com>
>>> 
>>> _____________________________________________________________________
>>> _ This email has been scanned by the Symantec Email Security.cloud 
>>> service.
>>> For more information please visit http://www.symanteccloud.com 
>>> _____________________________________________________________________
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