Unit 5 Use of WaterUnit 5 Use of Water

Unit 5 ObjectivesUnit 5 Objectives

Explain different types of water use Explain different types of water use operationsoperations

Demonstrate laying a wet line with both Demonstrate laying a wet line with both simple and progressive hoselayssimple and progressive hoselays

Show methods of picking up hose and Show methods of picking up hose and placing it back into service placing it back into service

Water for wildland firesWater for wildland fires

Much less water is needed for fighting Much less water is needed for fighting wildland fires than is used for other fire wildland fires than is used for other fire operationsoperations

Need to make whatever water available Need to make whatever water available go as far as possiblego as far as possible

Operating nozzlesOperating nozzles

Wildland nozzles Wildland nozzles flow much less flow much less water than structure water than structure nozzlesnozzles

Straight streams can Straight streams can be used for reaching be used for reaching hotspots and hotspots and knocking down fire knocking down fire ahead of the crewahead of the crew

Operating nozzlesOperating nozzles

Narrow and wide Narrow and wide angle fog or spray angle fog or spray patterns can be patterns can be used to lay wet linesused to lay wet lines

Wet lines should be Wet lines should be placed on the fires placed on the fires edgeedge

Wet LinesWet Lines

This is laying a path of watered down This is laying a path of watered down material along the edge of the firematerial along the edge of the fire

Should extend into both the green and Should extend into both the green and the blackthe black

This method works best if used with This method works best if used with class A foamclass A foam

Unit 5 Use of Water Unit 5 Use of Water (continued)(continued)

Water sourcesWater sources• CreeksCreeks• PondsPonds• Porta-Tanks (staging operations)Porta-Tanks (staging operations)• Other water sourcesOther water sources

Types of wildland hoseTypes of wildland hose• 1 ½” and 1” single jacket hose1 ½” and 1” single jacket hose• Booster hoseBooster hose• Special hoselinesSpecial hoselines

Unit 5 Use of waterUnit 5 Use of water

Types of appliances Types of appliances and toolsand tools• Pressure relief valvePressure relief valve• Check/bleeder valveCheck/bleeder valve• AdaptersAdapters• IncreaserIncreaser• ReducerReducer• Caps and plugsCaps and plugs• GasketsGaskets

• WyesWyes• Forestry teesForestry tees• inline shut offinline shut off

Hazards to HoselaysHazards to Hoselays

Fire DamageFire Damage Vehicle TrafficVehicle Traffic Sharp RocksSharp Rocks Damage from Sharp ToolsDamage from Sharp Tools

Unit 5 Use of WaterUnit 5 Use of Water

Types of water operationsTypes of water operations• Simple hoselaySimple hoselay• Progressive hoselayProgressive hoselay• Mobile attack linesMobile attack lines• Backpack pumpsBackpack pumps

Simple hoselaysSimple hoselays

Simple hoselays can run frompreconnected forestry hose, lines set up from a discharge, or booster lines.

Booster lines should not be stretched too far due to the time it takes to wind them back up, and that they aredifficult to cut.

Progressive hoselaysProgressive hoselaysProgressive hoselays use multiple lengths of hose added when needed at the nozzle end.

This means the crew will have to carry all the hose, extra nozzles, hose clamps, wyes and tees.

Progressive lays can exceed 1000ft

Starting a progressive Starting a progressive hoselayhoselay

Progressives usually Progressives usually start as simple laysstart as simple lays

Preconnected lines Preconnected lines can be set up with a can be set up with a wye & nozzle wye & nozzle combination to make combination to make the first added line the first added line go easiergo easier

Adding to the progressive Adding to the progressive laylay

1.1. Clamp hoseline at Clamp hoseline at least 10’ away from least 10’ away from couplingcoupling

2.2. Remove nozzle Remove nozzle from hoselinefrom hoseline

3.3. Add the next length Add the next length of hose &attach of hose &attach nozzle to new nozzle to new sectionsection

4.4. Slowly remove Slowly remove clampclamp

Mobile attacksMobile attacks

Mobile attacks are performed from moving vehicles using mountednozzles.

This method workswell in areas wherevehicles can easilyget to

Do not ride on the outsideof the vehicle!!

Mobile AttacksMobile Attacks

Spray bars are small Spray bars are small nozzles mounted at nozzles mounted at the front a a vehicle the front a a vehicle designed to spray a designed to spray a fan of water across fan of water across the path of the path of movementmovement

Mobile attacksMobile attacks

Booster lines can be Booster lines can be threaded into a threaded into a passenger seat and passenger seat and operated out a open operated out a open windowwindow

The backpack pumpThe backpack pump

Backpack pumps carry 4 to 6gallons of water, and go anywhere that a handcrew can

Can be easily filled up from many different water sources

Works well for knocking down smaller flame lengths

FoamFoam

Class A foam allows Class A foam allows water to soak into water to soak into materials much materials much easiereasier

Bubbles in the Bubbles in the mixture also helps to mixture also helps to form a shield form a shield against radiant heat against radiant heat

The Gasner PackThe Gasner Pack

This is a method of This is a method of rolling wildland hose rolling wildland hose

Easier to stretch out, Easier to stretch out, easier to carryeasier to carry

Building a Gasner Method 1Building a Gasner Method 1

Building a Gasner Method 2Building a Gasner Method 2

Building a GasnerBuilding a Gasner

Building a GasnerBuilding a Gasner

Building a GasnerBuilding a Gasner

Figure 8 RollFigure 8 Roll

The figure 8 is a The figure 8 is a quick method of quick method of draining and picking draining and picking up hose up hose

The figure 8 bundle The figure 8 bundle can be pulled out can be pulled out straight for use straight for use againagain