Chapter 12: Water Supply Flashcards
Hydrants in Edmonton
Dry Barrel
- dead end
- circulating: feed looped line hydrant
always fully open and fully close
4 Pressures with in the water system
SRFN
Static
Residual
Flow
Normal operating
Hydrant Flow rate
Blue/Black/Silver: >5700 Lpm
Green: 3800-5700 Lpm
Yellow/Orange: 1900-3800 Lpm
Red: <1900 Lpm
Hydrant Rings
White: FD use only
Blue: in use w/ permission
Orange: out of Service
Green: under construction do not use
Alt. Water sources
Ponds, Rivers, Pools Cisterns, Portable Tanks
Drafting
Process of rising water from a static source to supply a pumper
Water shuttle
Hauling water from source to portable tank for drafting purposes
to be used when distance is greater than .8 Km
3 parts: fill site, Dump site, shuttle
Relay Pumping
pumps used in series to move water a great distance
strongest pump to draft
smallest pump at hydrant
On board water capacities of Units
Super tanker: 13500 Tanker: 4500 Quint: 1818 Pump: 1817 ATP: 1442 Ladder: 1134 Mule Trailer: 250
7 hoses used by EFRS
20mm(25mm in book( booster reel: 45m
38mm wild land: stayflow30m spec187 7.5m/15m
44mm high combat: 15m (7.5m on ladder)
65mm high combat: 15m (3m Pre connect in stop bag)
125mm hivol: 15m + 7.5M poney
150mm hard suction L.W.: 4m/5m
150mm hard suction H.W: 3m
Hose on Pump
2 x 44mm jump line 3 x 44mm tran. red 4 x 44mm tran. orange 5 x 44mm tran. green 5 x 44mm tran. blue 5 x 65 trans
5 x 65 quick attack monitor flat bed
16 x 125 hi-vol
1 x pony 125 hi-vol
High vol on Trucks
Pump: 16
Tanker: 15
Ladder: 9
Quint: 4
4 categories of Hose Damage
COTM Chemical Organic Thermal Mechanical
Hose Testing
44 & 65: 2100kpa 3min
125 : 1400kpa 3min
stay 15’ from the left side as hose tends to roll to the right( looking down the hose to nozzle end)
Fire hose couplings
65 & 44 threaded: longer lugz on male end, Swivle on female, higbee cut and indicator on both
stortz: sexless, line up couplings until flush trun clock wise and you will hear locking devise click
loads and rolls
ERFS uses flat fold 125 and transverse 44/65
scorpion for the jump line
straight hose rool for 125 pony ond any 65/44 hoses rolled. allways protect the male end
Forward and Reverse Lays
Forward: from hydrant to fire
Revers: from fire to hydrant
11 steps of Small Gate
forward lay
11 steps of Small Gate
1) Safely dismount Apparatus wearing all PPE and carrying Radio
2) If Riding in new Smeal ensure coffin doors are Electrically open
3) Retrieve Hydrant Kit From drivers side rear compartment
4) Place Hydrant Kit in PRACTICAL location for Big Gate
5) Help Big Gate with Supply Line and wait for ready signal
6) Return to Apparatus and Relay Signal to Driver and Officer
7) AT THE SCENE safely dismount the unit and uncouple supply line at nearest joint
8) Attach supply line to the appropriate apparatus on scene (use pony if needed
9) If located at the intake connection open the intake drain valve
10) Communicate to driver that the line is ready
11) Report to Officer for reassignment
10 Steps of big gate
forward lay
10 Steps of big gate
1) Safely dismount Apparatus wearing all PPE and carrying Radio
2) Remove Hydrant Gate from rear of apparatus
3) Wrap 125MM hose around the hydrant
4) Stand on hose and signal Small Gate when ready
5) when apparatus is stopped or safe to do so; remove streamer cap from hydrant
6) Inspect the Barrel of hydrant and connect Gate
7) Ensure drain Valve on hydrant gate is in open position
8) Radio or signal Driver/sector officer that you are ready to turn on the hydrant
9) Open Hydrant When ordered by Driver/Sector officer
10) Gather tools, Remove Kinks in hose and Report to your officer for reassignment
Revers Lay
-Big & Small Gate Dismount
-Open Coffin Doors, disconnect hydrant gate
-Small gate secures hi-vol to under wheel of pump on scene
-Big Gate Returns to pump and informs him that small gate is ready
-Driver drives to water supply
-Big gate dismounts, removes hydrant kit, uncouples hi-vol at nearest join(use pony if needed) connect Gate to hi-vol supply line
- Big Gate connects Hydrant Gate to Hydrant
-Small Gate connects supply line to pump/ladder
Supply pump driver or big gate to communicate with on scene drive and charge the supply line
44 & 65 mm Hose
44mm: 550Lpm, FL/15m=100kpa, nozzle pressue 550kpa
65mm: 950Lmp, FL/15m=50kpa, nozzle pressure 550kpa
nozzles for both have same pressure and flow rate
Rule of thumb is 70 kpa fl per appliance this is known as unit loss
Siamese: 2650Lpm, FL90, NP 700kpa
percing nozzle: 475Lpm @ 500kpa
Hydrant Kit
2 stortz wrenches 1 combination wrench 1 adjustable wrench 1 butterfly key with runner strap 1 rubber mallet 1 roll of banner gaurd
Elevation Pressure
1m=10kpa
1 story =3.5m=35kpa
