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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