7. Determine the number of gallons in the buckets.
Determine the number of gallons of water in the buckets after 60
seconds of water
fl
ow. This value represents the amount of
fl
ow
in the system in gallons per minute (GPM).
8. Compare the results.
Compare the results of the
fl
ow test to the system design values.
Both the residual pressure and
fl
ow (GPM) must be equal to or
greater than the design values to ensure a properly working
system.
NOTICE:
Do not commission a system that does not meet the
fi
re protection
fl
ow and pressure requirements.
9. Reinstall the sprinklers.
Using the appropriate sprinkler wrench, thread the sprinklers into
the
fi
tting. New thread seal tape shall be applied to the sprinklers
prior to installation.
7.16 Maintaining the System
The installer needs to communicate that the owner or property
manager is responsible for the condition of the
fi
re sprinkler system
and must keep the system in normal operating condition. At a
minimum, a recommended monthly maintenance schedule should
include the following:
- Visual inspection of all sprinklers to ensure against obstruction or
spray.
- Inspection to ensure sprinklers are not damaged, broken, painted or
obstructed.
- Inspection of the system pressure gauge to ensure the system is
pressurized.
- Inspection of all valves to ensure that they are open.
- Flow veri
fi
cation of the water supply.
- Inspection of booster pumps, if applicable.
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