Having worked in every facet of this industry except the supply side,
I can tell you that there have been many cases of "if a little is good,
then more is better". We have also seen antifreeze pumped in systems and
then the water turned on in order to complete the filling. This was one
method demonstrated to me when I was a helper.
Pressure, orifice size and concentration undoubtedly play a part.
Do we have data on successful fire sprinkler operation with antifreeze
systems?
Greg
On 9/22/2010 7:54 PM, Chris Cahill wrote:
In theory the FDC negates this good idea of pressure vs. concentration. In
reality FDC aren't used but we live in the theoretical world far, far too
often.
Chris Cahill
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Thom
Sent: Wednesday, September 22, 2010 6:45 PM
To: [email protected]
Subject: RE: Anti Freeze for commercial
Rod:
It very well turn out that glycol 70/30 works fine at say 45-50Psi and you
can only use 50/50 when pressure is over 60Psi or something like that. The
same with glycerine. The is a starting end head pressure part of this story
that needs to be worked out, not just the concentration. If 50/50 will work
under all pressures up to 175, What will work at pressures less than 110 or
60????
I think there needs to be a lot more study, before we get anywhere near the
"Definative" answer we need to not feel EXPOSED!
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Rod DiBona
Sent: Wednesday, September 22, 2010 5:00 PM
To: [email protected]
Subject: RE: Anti Freeze for commercial
I hear ya George. I am sure that I will learn more next week in Rhode
Island. Yet another reason to go to every convention. Truth is that we
commonly mix glycol 70/30 out here and Marty tells me for over 30 years with
no reported problem. I look forward to hearing and seeing the facts. At the
end of the day we will get through it and I do have confidence that the
right decision will be made. Just wondered if we knew with reasonable
certainty that the antifreeze was the cause. Questioning why we haven't seen
these in the past; or if we had, was there a different diagnosis? Read the
report from FSI. Interesting and well done but I have some questions. Maybe
they get answered next week! See you down there.
Rod DiBona
Rapid Fire
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--
Greg C. McGahan Living Water Fire Protection, LLC. 1160 McKenzie Road
Cantonment, FL 32533 850-937-1850 Fax 850-937-1852
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