Water sources and Hydrants Flashcards
Who is responsible for water in ACT?
ICON water
What is ICON water responsible for?
Water supply
Hydrant maintenance
Hydrant supply
How do you gain static/open water supply?
By draughting
How do Trunk Mains work?
Deliver from water source to treatment plant
How do service mains work?
- From reservoirs to various pressure zones
- Between roads and footpaths
- Have shut of valves
How do ring mains work?
- Runs completely around an area and coupled back into supply
- Water travels both directions
- Contain shut off valves
- Installed at high risk areas
What is pressure?
The force at which water is delivered
What is flow?
Quantity of water delivered
What is needed for a spring valve hydrant?
Need a standpipe
Hydrant bar
Stored in hydrant pit with steel cap
50mm to 500mm from road or path
How to inspect a standpipe?
- Inspect ‘O’ ring
- Male lug can freely rotate and screwed all way down
- Clear all debris from hydrant
- Flush standpipe
Description of High-capacity hydrants
Two 65mm storz outlets
One 125mm outlet
All yellow
Need a high capacity key
Pillar hydrant facts
Need pillar key
Not installed anymore
Heritage listing
If not connected - will have a spring valve next to it
How to avoid Water Hammer?
Slow controlled close of branches
Slow controlled close of delivery
Slow controlled close of hydrants
Use hose ramps
Internal hydrant location (in building)
Building greater than 4 floors
2 or more basement levels
Building has pressurised stairwell
Pre 1994 - within 4m of designated exit
Post 1994 - inside fire isolation stairwell
Diameter of Trunk main
600mm to 3000mm
Diameter of Service main
100mm to 600mm
What are hydrant boosters?
Connect to internal hydrant systems of buildings to boost pressure
