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					WATER SUPPLIES




     Instructors: Mario Partida
                 Kenny Immel
Objectives
 Water supply definitions
 Four Basic components of a water supply
  system
 Methods of moving water
 Label parts of a distribution system
 State pipe sizes for residential, business,
  and industrial
 Identify types of water main valves
Objectives
   List two types of friction loss in water mains
   Distinguish between wet-barrel and dry-barrel
    fire hydrants
   List conditions that reduce hydrant effectiveness
   Describe water shuttle and water relay
   Fully open and close a hydrant safely
   Measure and record hydrant flows
   Describe proper equipment and positioning of
    apparatus for drafting from a static source
History of Water Systems
   Aqueduct

   Bucket Brigades

   Wells and reservoirs

   Log Pipes
  Components of a Water Supply System
“What are four major components of a Water Supply System?”

                                     Source of Supply

                                     Mechanical or means
                                      of moving water

                                     Treatment Facilities

                                     Distribution and
                                      Storage System
“What are the three methods of moving water?


   Direct pumping

   Gravity

   Combination pumping
    and Gravity
               ?
“Does all water need to be treated ?”

“What are some methods used by treatment
 facilities ?”

“What is the fire department’s main concern
 regarding treatment facilities ?”
Gridded Water Distribution System
           Primary Feeders
           Secondary Feeders
           Distributors
Define the following
   Distribution System

   Dead-end hydrant

   Circulating feed

   Grid system
Recommended Water Main Sizes
Flow Through Different Pipe Sizes
Valves
“What is the function of a valve in a water
 distribution system?”

“What should valve spacing be in high-value
 districts? In other areas?”

“How does a firefighter know where the water
 system valves are located?”
Types of Valves
“What are the two broad categories valves ?”
Underground Water Pipe
   Construction materials: Cast iron, ductile
    iron, asbestos cement, steel, plastic,
    concrete, steel or reinforced concrete

   Conditions that require extra protection

   Internal surface material and resistance to
    water flow
Friction Loss
“What is friction loss?”

“What are the main causes of decreased pipe
 size and increased friction loss in distribution
 mains?”
Kinds of Pressure
   Static Pressure
    “Stored potential energy that is available to force water through pipe,
    fittings, fire hose and adaptors”
   Normal Operating Pressure
    “Normal operating pressure that is in the system during normal
    consumption demands”
   Residual Pressure
    “That pressure available after flow is accomplished through pipes,
    fittings, fire hose and adaptors”
   Flow Pressure
    “That forward velocity pressure at a discharge opening while water is
    flowing”
Fire Hydrants
Fire Hydrants
Fire Hydrants
Hydrant Construction
“ What are bonnets, barrels and footpieces made of
  ?”
  Cast Iron


“ What are the valves facings made of ?”
  Rubber, leather or composition


“ What are working parts made of ?”
  Bronze
Colors
    Hydrant markings should be simple and system
    easily recognizable.

   Red
          Less than 500 gpm
   Orange
          500-999
   Green
          1000-1499
   Light Blue
          1500-above
Hydrant Inspection
 Check for any obstructions that have been
  placed
 Check outlets for direction and clear of
  ground
 Check to see if damaged by traffic or sitting
  too close to curb
 Check condition of the paint and if it
  conforms
Hydrant Safety
 Tighten all caps
 Do not stand in front of caps
 Do not lean over top
 Close hydrant slowly
 Check downstream for drainage
 Check for flow across street
Water Relay
Water Shuttle
Objectives
 Water supply definitions
 Four Basic components of a water supply
  system
 Methods of moving water
 Label parts of a distribution system
 State pipe sizes for residential, business,
  and industrial
 Identify types of water main valves
Objectives
   List two types of friction loss in water mains
   Distinguish between wet-barrel and dry-barrel
    fire hydrants
   List conditions that reduce hydrant effectiveness
   Describe water shuttle and water relay
   Fully open and close a hydrant safely
   Measure and record hydrant flows
   Describe proper equipment and positioning of
    apparatus for drafting from a static source
Mario Partida
   SCBA
   Water Supplies
   Protective Clothing
   Live Fire Training

   281-271-2870 SLFD
   Mpartida@cityhall.ci.sugar-land.tx.us
   Mxpartida@usa.net

				
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posted:1/6/2013
language:English
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