Evolution 1A...IN LINE PUMPING Flashcards
IN LINE PUMPING…
pumper reaches hydrant BEFORE fire
4 FF Engine:
hydrant FF =control
hose ff= back up
5 ff engine co:
hydrant ff=control
hose ff= door
Pumper stops so that rear step is opposite hydrant…
Hydrant FF equipped with a hydrant wrench and 2 1/2” gate, test the hydrant
After the hydrant is deemed serviceable, the ___FF will KEY THE HYDRANT by pulling sufficient 3 1/2” hose from the hose bed and take turn around the hydrant?
HOSE FF (NOT HYDRANT FF)
-HOSE FF then mounts the backstop and prepares to use signal buzzer
Hydrant FF will?
-maintain the key
-connect the 3 1/2” hose to the 4 1/2:” outlet
-IF TIME PERMITS, connect the 2 1/2” gate
WAIT for ECC notification, before opening hydrant
At SLOW rate of speed, playing out hose, the pumper process to the vicinity of the fire building, NOT to impeded the positioning of a ladder company…
HOSE FF rides the rear step and monitors the playing out of hose
Supplying BOOSTER WATER upon OFFICERS ORDERS shall be give priority over hooking up the in line supply line….
Initial handline stretch will be controlled by Door (5 FF engine) or ECC (4 FF ENGINE) until relieved by control FF
Booster water is used…?
NOTIFY Engine Officer and notify Engine OFFICER she n back to hydrant water
Notes for ILP:
- hydrant must be on 6” or LARGER main…during water alert, ILP shall not be used UNLESS absolutely necessary
- 3 1/2” supply line
- NOT more than 6 lengths of hose shall be used in the initial supply line
- when INTAKE PRESSURE DROPS BELOW 15 PSI, the pump operator shall have his intake supply augmented
- necessary fittings to connect to a hydrant shall be pre connected to 3 1/2” supply hose on the pumper(DON’T CONFUSE WITH SUPPLY LINE NOT BEING PRECONNECTED)
- Supply SHOULD NOT be pre connected to pumper
- Generally max of 3 lengths of 3 1/2’’ supply line should be HAND STRETCHED back to hydrant
- time permitting- 2 1/2” gate connected
ECC of the ILP should have water supply augmented when the INTAKE pressure drops below 15 PSI.
WHEN INTAKE IS low (30-40 psi), residual pressure may not be capable of sustaining 2 lines
Following signals used form back step buzzer:
ONE BUZZER- EMERGENCY STOP
TWO BUZZER- HOSE FF in position, pumper to proceed
THREE BUZZER TONES-area to rear of pumper is clear for backing up operations and under proper supervision
The capacity of a hydrant is a MAJOR FACTOR in in line pumping operations …capacity is based on ?
size of main
location within the system
etc.