previous fires or under construction
c. If large intense fire encountered, may be necessary to knock down or control fire from outside
using solid stream before making interior attack
3. Combination attack
a. Used when entire area has high heat level
b. Consists of applying water to fire and area above fire
c. Pattern includes the T, Z, and O
B. Solid Stream Versus Fog Stream
1. For safest and most effective operation where people in area, solid stream or fog nozzle on straight
stream position should be used
a. Aid rescue
b. Reduce steam production
2. Use of fog should be restricted to unoccupied confined spaces
3. When building adequately ventilated opposite direction from fog nozzle, fog stream can be used
a. No more than 30-degree angle
b. Produces reach and fog pattern
C. Effective Stream Operation
1. Use solid stream nozzles or set fog nozzles on straight stream setting
2. Stay low upon entering fire area to let heat and gases vent before moving in
3. Before door to fire area opened, all firefighters should be positioned on same side of entrance and
4. Crack nozzle and bleed air out of line ahead of water
5. If fire shows at top of door as opened, ceiling should be hit with solid or straight stream to cool and
control fire gases
6. Sweep floor with stream to cool burning debris and hot surfaces
7. Do not open stream until fire can be hit unless firefighter safety involved
8. Direct the stream at the base of fire if localized
9. As the advance is made, the angle of stream should be lowered and an attempt made to hit the
main body of fire
10. When the main body of fire knocked down, shut down the stream and let the area vent
11. When the fire is knocked down, shut down the nozzle
12. Upon entering an area which is very hot and finding no fire, withdraw immediately and check the
13. When attacking basement fire down interior stairs, straight stream should be used because fog will
D. Attack Line Practical
1. Advance an uncharged 1-1/2-inch, 1-3/4-inch, or 2-inch line up an interior stairs to a location
above the ground floor.
2. Advance a charged 1-1/2-inch, 1-3/4-inch, or 2-inch line up an interior stairs to a location above
the ground floor.
3. Advance a charged 1-1/2-inch, 1-3/4-inch, or 2-inch line down an interior stairs to a location
below the entry floor.
4. Advance an uncharged 1-1/2-inch, 1-3/4-inch, or 2-inch line up a ladder to a floor above the
5. Advance a charged 1-1/2-inch, 1-3/4-inch, or 2-inch line up a ladder to a floor above the ground
6. Advance an uncharged 1-1/2-inch, 1-3/4-inch, or 2-inch line to the floor below the fire floor,
connect it to the standpipe connection, charge it, and advance it to the fire floor. After charged,
extend the line to a higher floor.
7. Set up and establish a water supply from the attack pumper to a fire protective system using
multiple lines of 2-1/2-inch or 3-inch hose.
8. Repack the attack line in a flat and minuteman load.
9. Repack a standpipe pack.
* Introduction to Attack Lines
* Advancing Attack Lines
* Fire Attack