Fire Ground Water Sources

Question 1

Main Sizes

Answer 1

• 6” to 24” in diameter; average 70 PSI static pressure

Question 2

City Hydrants

Answer 2

Color: Yellow
Steamer: 4-1/2"
Side Outlets: 2-1/2"
Static Pressure: 70 PSI
Residential Main: 6" to 10"
Commercial Main: 8" to 36"

Question 3

Private Hydrant (Industrial Facility)

Answer 3

Color: Red
Steamer: 4-1/2"
Side Outlets: 2-1/2"
*Some may not have a steamer/individual outlets may be gated
Static Pressure: Up to 180 PSI

Question 4

Private Hydrant (Apartment/Business Complex)

Answer 4

Color: Red
Steamer: 4-1/2"
Side Outlets: 2-1/2"
Static Pressure: 70 PSI
Dead End Mains or Loops: 6" to 10"

Question 5

Private hydrants are transitioning …

Answer 5

… to the color WHITE as of 2016

Question 6

Hydrant Color Codes

Answer 6

Red - less than 500 GPM
Orange - 500 GPM to 1000 GPM
Green - 1000 GPM to 1500 GPM
Blue - greater than 1500 GPM

Question 7

Drafting utilizes …

Answer 7

… atmospheric pressure

Question 8

Booster Tank

Answer 8

• Static supply; higher than pump manifold, utilizing head pressure
• Size of TANK to PUMP valve and head pressure determines flow from booster tank
• 3” TANK to PUMP valve
• Flow limited to 700 GPM to 800 GPM on all JFRD Engines