There is a local fire house with a dry system installed in 1984. Sch
40 lines and Sch 10 mains. Dry system. It was never pitched properly
nor were low points correctly installed. It looks like most of the
main floor may be plugged or have significant scale build up. The
installing contractor is still doing the maintenance on the system
and may be doing a flushing I recommended as well. I hope to be
present when they do it.
At 07:28 AM 1/27/2008, you wrote:
As for extremes of what did and didn't work, I'd offer the following off the
top of my head:
1911 & 1916 wet systems at SS White Building, 12 stories in downtown Phila
with steam pump boosting city water with city steam- did internal inspection
to investigate feasibility of re-using 3/4" lines in a condo conversion from
mfg; clean as a whistle. We did use new heads :)
2001 installation of Allied galv sch 10 at an office building west shore of
Harrisburg, wood truss attic dry systems; After 3 years in service, with
nothing done to the system but install, hydro, air test, acceptance test,
drain and place in initial service- no ITM whatsoever- pinhole leaks tripped
the system a few times and we ripped it all out and replaced it 3 years
after putting it in service. Analysis indicated it was NOT MIC and, after
the system was completely replaced at no cost to the owner (and no
reimbursement from mfr) the property owner asked us to not bid their
addition. Just makes you wonder what would it take to make them happy?
Shoulda told em "One Year Warranty, have a nice day" but we did what we
thought was the right thing to do. Just can't make some people happy, I
guess.
GLC
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Ed Vining
Sent: Saturday, January 26, 2008 12:20 PM
To: [email protected]
Subject: RE: Fire sprinkler question
Thanks much guys. Now since we have the weekend to hash it over, how about
the systems that didn't last. And if possible, why they didn't
Ed
Todd Williams - FPDC <[EMAIL PROTECTED]> wrote:
As another example, I am working on a mill conversion and the
building and sprinkler system are from 1904. When we changed the 3/4"
pipe, the internal looked like new pipe. This had been a wet system,
but was fed by river water. Go figure.
Ed Vining
4819 John Muir Rd
Martinez CA 94553
925-228-8792
[EMAIL PROTECTED]
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Todd G. Williams, PE
Fire Protection Design/Consulting
Stonington, Connecticut
www.fpdc.com
860.535.2080
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