Douglas,

During the early eighties and maybe the seventies (I was in California
until the late eighties so I'm not sure about the when) schools K-12 were
under the jurisdiction of the State FM. There were several I've come across
with these silly partial systems "protecting" small areas deemed to be
extra dangerous for one reason or another, including the main building at
Bates Tech College (which was a vocational adult school in the Tacoma
school District until 1988), my own institution. In the entry to what is
now the financial aid office, but then was registration, are seven Omega
heads over the doorway. There are four along one wall in a counselor's
office but that wall used to be a pass through of some sort with a drop
window arrangement. There's an elementary school in Puyallup with two heads
(and six spares) covering a "stage" (platform), and a high school with four
heads over the main office counter (highly combustible paperwork no doubt).
All these "systems" are tapped off plumbing, and installed in, at best, a
pipe schedule, or to nothing cogent at all like your "system" seems to be.
I wouldn't be surprised if Washington nonsense migrated to Oregon. You may
be looking at something somebody thought was a "good idea at the time,"
like that six month or so surge of a single sprinkler head over a
residential cooking surface tapped off the plumbing. Or perhaps tose guys
that decided if some anti-freeze was good 100% anti-freeze would be better,
until....

On Sun, Mar 25, 2012 at 12:59 PM, Douglas Hicks <[email protected]> wrote:

> I am looking at 2 schools that have partial sprinkler systems, protecting
> the egress routes only.  The local Fire Marshal thinks they may be
> installed to FM74 standards.  The 2 that I have seen are wet systems, 1/2
> inch drops to the heads, 1/2 garden hose fitting as an inspector’s test.
> The heads are pendant, and uprights,  as far  as 2 feet from the ceiling.
> Some of the heads are leaking, some of the heads look to be oriented
> improperly. No one seems to know what the year of installation was.  Is/was
> there a standard for that type of sprinkler system?
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-- 
Ron Greenman
Instructor
Fire Protection Engineering Technology
Bates Technical College
1101 So. Yakima Ave.
Tacoma, WA 98405

[email protected]

http://www.bates.ctc.edu/fireprotection/

253.680.7346
253.576.9700 (cell)

Member:
ASEE, SFPE, ASCET, NFPA, AFSA, NFSA, AFAA, NIBS, WSAFM, WFC

They are happy men whose natures sort with their vocations. -Francis Bacon,
essayist, philosopher, and statesman (1561-1626)
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