Supply Line Operations

Firefighter Review Session Reference: 1 Topic: Supply Line Operations Time Required: Three Hours Materials:    • Two Fully Equipped Pumpers    • Static And Pressurized Water Sources References...


Firefighter Review

Session Reference: 1

Topic: Supply Line Operations

Time Required: Three Hours

Materials:

   • Two Fully Equipped Pumpers

   • Static And Pressurized Water Sources

References:

   • Engine Company Fireground Operations, Second Edition, NFPA, Pages 15-28 and Chapter 5

   • Essentials of Fire Fighting, Fourth Edition, IFSTA, Chapters 11 and 12

PREPARATION:

Motivation:

Objective (SPO):

The firefighter will demonstrate a working knowledge of supplying water to the fireground, the various sizes of hose and appliances utilized to carry out this responsibility, and, by participation and observation, the various appliances, hose layouts, and procedures involved in supplying water at a structural fire.

Overview:

Supply Line Operations

   • Supply line appliances

   • Supply line evolutions

   • Supplying water from various sources

   • Supply lines and appliances

Session 1 Supply Line Operations

SPO The firefighter will demonstrate a working knowledge of supplying water to the fireground, the various sizes of hose and appliances utilized to carry out this responsibility, and, by participation and observation, the various appliances, hose layouts, and procedures involved in supplying water at a structural fire.

EO 1-1 Describe the various appliances used with hose to supply water to the fireground.

EO 1-2 Describe the various hose evolutions used to supply water to the fireground.

EO 1-3 Demonstrate supplying water for fireground operations from various sources (NFPA 1001 (1997) 3-3.14).

EO 1-4 Demonstrate using various sizes of hose and appliances to supply water to the fireground (NFPA 1001 (1997) 3-3.14).

 

I . Appliances For Water Supply (1-1)

A. Effective use of supply lines requires use of adapters to receive and discharge water

B. Hose adapters divided into those used at water source and those used at supply line discharge point

C. Water source appliance

  1. Hydrant devices

       a. Humat valve

       b. Hydrant gate

       c. Ball valve

       d. Butterfly valve

  2. Static source devices

       a. Siamese (clappered)

       b. Gated Siamese

D. Water supply devices

  1. Gated wye

  2. Gated manifold

  3. Water thief

  4. Master stream device (deluge or deck gun)

 

II . Water Supply Evolutions (1-2)

A. In basic fire training, the discussion centered around

  1. Straight lay

  2. Reverse lay

  3. Split hose lays

  4. Review material from basic fire training

      a. Laying single and dual lines in each type of lay with necessary appliances based on hose bed

          configuration

      b. Direct connection to hydrants and use of various hydrant appliances

      c. Setting up for draft from dry hydrant and static source

      d. Setting up portable tank

B. Hose lays can be accomplished with either single or multiple lines, dependent upon

  1. Flow requirements

  2. Length of lay

  3. Size of hose

C. Evolutions work well with pressurized water systems

D. Variations of hose lays

  1. Rural operation with nurse tanker or portable tank

      a. Lay LDH, either 4-inch or 5-inch, from end of lane back to fire scene

      b. Manifold or wye used to distribute water at scene

      c. LDH supplied from portable tanks or nurse tanker

      d. Reduces need for extra apparatus at scene when not needed

      e. Provides mobility for moving water during shuttling operations

  2. Static water source

      a. Lay LDH from source such as pond or swimming pool to fill station or fire scene

      b. Multiple pumpers could pump into LDH using siamese to minimize strain on any one engine and

          maximize capability of hose

      c. If pumpers cannot gain access, several portable pumps could be used

E. Maximizing Hydrant Operations

  1. Tandem pumping involves one pumper directly attached to hydrant with second pumper taking the

      excess pressure and flow from that hydrant

      a. First pumper connects to steamer connection and takes water

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