Standard
UPDATE AVAILABLE
AS 3500.3-1990
[Superseded]National plumbing and drainage code, Part 3: Stormwater drainage
Specifies uniform requirements for the installation of stormwater plumbing and stormwater drainage up to the Regulatory Authority's point of connection. This Standard applies to new installations as well as alterations, additions and repairs to existing installations. Reference is made to the relevant Australian Standards dealing with methods for the sizing of roofwater systems.
Published:Â 13/08/1990
Pages:Â 37
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
PREFACE
FOREWORD
1 SCOPE AND GENERAL
1.1 SCOPE
1.2 APPLICATION
1.2.1 General
1.2.2 New materials and methods
1.2.3 Unusual installations
1.3 REFERENCED DOCUMENTS
1.4 DEFINITIONS
1.5 PIPE GRADIENTS
1.6 CLASSIFICATION OF SOILS
1.7 CLASSIFICATION OF BUILDINGS
1.8 FIRE RESISTANCE LEVEL (FRL)
1.9 SAFETY
2 MATERIALS AND PRODUCTS
2.1 SCOPE OF SECTION
2.2 AUTHORIZATION
2.3 SELECTION AND USE
2.4 ROOFS AND COMPONENTS
2.5 PIPES, AND FITTINGS FOR NON-PRESSURE APPLICATIONS
2.5.1 Cast iron
2.5.1.1 Specification
2.5.1.2 Limitation on use
2.5.2 Copper pipes
2.5.2.1 Specification
2.5.2.2 Limitations on use
2.5.3 Copper alloy pipes
2.5.3.1 Specifications
2.5.3.2 Limitations on use
2.5.4 Copper and copper alloy fittings
2.5.4.1 Specifications
2.5.4.2 Limitations on use
2.5.5 Fibre reinforced cement (FRC)
2.5.5.1 Specification
2.5.5.2 Limitations on use
2.5.6 Galvanized steel
2.5.6.1 Specifications
2.5.6.2 Limitations on use
2.5.7 Glass filament reinforced thermosetting plastics (GRP) pipes
2.5.7.1 Specification
2.5.7.2 Limitations on use
2.5.8 Reinforced concrete pipes
2.5.8.1 Specification
2.5.8.2 Limitations on use
2.5.9 Unplasticized polyvinyl chloride (UPVC)
2.5.9.1 Specifications
2.5.9.2 Limitations on use
2.5.10 Vitrified clay
2.5.10.1 Specification
2.5.10.2 Limitations on use
2.6 PIPES AND FITTINGS FOR PRESSURE APPLICATIONS
2.7 PIPES AND FITTINGS FOR SUBSOIL DRAINS
2.7.1 Specification
2.7.2 Limitation on use
2.8 JOINTING COMPONENTS
2.8.1 Rubber rings
2.8.2 Silver brazing alloy
2.8.3 Soft solder
2.8.4 Solvent cement and priming fluid
2.9 VALVES
2.9.1 Cast iron and ductile iron
2.9.2 Copper alloy
2.9.3 UPVC
2.9.4 Cast iron, UPVC, copper alloy or PVC coated steel
2.10 CONCRETE AND MORTAR
2.10.1 Cement
2.10.2 Fine aggregate (sand)
2.10.3 Coarse aggregate (metal)
2.10.4 Concrete mix
2.10.5 Cement mortar
2.10.6 Chemical admixtures
2.10.7 Water for concrete and mortar
2.10.8 Steel reinforcement
2.11 BEDDING MATERIAL
2.11.1 Stormwater drains
2.11.2 Subsoil drains
2.12 BACKFILL MATERIAL
2.13 MISCELLANEOUS
2.13.1 Timber
2.13.2 Epoxy resins
2.13.3 Geotextiles
2.13.4 Pre-cast pits and arrestors
2.13.5 Bricks
2.13.6 Test sieves
2.13.7 Fibreglass reinforced plastic tanks
2.13.7.1 Specification
2.13.7.2 Limitations on use
3 DESIGN
3.1 SCOPE OF SECTION
3.2 ROOFWATER SYSTEM
3.2.1 General
3.2.2 Layout, size and installation
3.3 SUBSOIL SYSTEM
3.3.1 General
3.3.2 Layout
3.3.3 Spacing
3.3.4 Size
3.3.5 Gradient
3.3.6 Installation
3.4 SURFACE WATER SYSTEM
3.4.1 General
3.4.2 Rainfall intensities
3.4.3 Layout
3.4.4 Size
3.4.5 Paved and unpaved areas
3.4.5.1 Levels
3.4.5.2 Accesses
3.4.5.3 Arrestors
3.5 GRADIENTS OF STORMWATER DRAINS
3.5.1 Minimum
3.5.2 Steep
3.5.3 Anchor blocks
3.6 STORMWATER DRAINS IN EASEMENTS, AND PUBLIC PLACES
3.6.1 Roads, easements and public places
3.6.2 Easements
3.6.3 Public roads and rights of way
3.7 PROXIMITY TO OTHER SERVICES
3.7.1 Electrical cables and gas pipes
3.7.1.1 Above ground
3.7.1.2 Below ground
3.7.1.3 Crossover
3.7.2 Sanitary drains and water services
3.7.3 Crossovers
3.8 DEPTH OF COVER FOR STORMWATER DRAINS
3.8.1 General
3.8.2 With adequate cover
3.8.3 Without adequate cover
3.8.4 Under buildings
3.9 BUILDING OVER STORMWATER AND SUBSOIL DRAINS
3.9.1 Alterations and additions to buildings
3.9.2 Proximity to footings and foundations
3.10 CONNECTIONS TO STORMWATER DRAINS UNDER BUILDINGS
3.10.1 Downpipes
3.10.2 Reinforced concrete or vitrified clay risers
3.11 RE-USE OF EXISTING STORMWATER DRAINS
4 APPURTENANCES
4.1 SCOPE OF SECTION
4.2 POINT OF CONNECTION
4.2.1 General
4.2.2 Protection of stormwater mains
4.3 STORMWATER DRAINS
4.3.1 General
4.3.2 Below ground
4.3.3 Above ground under buildings
4.4 REFLUX VALVES
4.4.1 Location
4.4.2 Requirements
4.4.3 Reflux valve chambers
4.4.4 Below slabs or other obstructions
4.5 INSPECTION OPENINGS
4.5.1 General
4.5.2 Location
4.5.3 Size
4.5.4 Types
4.5.5 Access within buildings
4.5.6 Sealing
4.6 STORMWATER PITS, INLET PITS AND ARRESTORS
4.6.1 Purpose
4.6.1.1 Stormwater pits
4.6.1.2 Inlet pits
4.6.1.3 Arrestors
4.6.2 Size
4.6.2.1 Stormwater pits
4.6.2.2 Inlet pits
4.6.2.3 Arrestors
4.6.3 Material
4.6.3.1 Rectangular or square pits and arrestors
4.6.3.2 Circular stormwater pits
4.6.4 Construction
4.6.4.1 Conduits and channels
4.6.4.2 Ladders
4.6.4.3 Cement rendering
4.6.4.4 Top of stormwater pit
4.6.4.5 Access opening
4.6.4.6 Construction joints
4.6.4.7 Inserts
4.6.5 Differential settlement
4.7 JUNCTIONS OF STORMWATER DRAINS
4.7.1 General
4.7.2 Square junctions
4.7.3 Downpipes
4.8 JUMP-UPS
4.9 DISCONNECTION OF SUBSOIL AND SURFACEWATER SYSTEMS
5 EXCAVATION, BEDDING, SUPPORT AND BACKFILLING
5.1 SCOPE OF SECTION
5.2 EXCAVATION
5.2.1 Safety
5.2.2 Trench dimensions
5.2.3 Over-excavation
5.2.4 Near point of connection
5.2.5 Water-charged ground
5.2.6 Shoring and underpinning buildings
5.3 STORMWATER DRAINS IN TRENCHES
5.3.1 General
5.3.2 Bedding material
5.3.2.1 Flexible pipes
5.3.2.2 FRC and reinforced concrete pipes
5.3.2.3 Vitrified clay pipes
5.3.2.4 Metallic pipes
5.3.3 Installation
5.3.3.1 General
5.3.3.2 Flexible pipe
5.3.3.3 Rigid pipe
5.3.4 Support in water-charged, unstable or filled ground
5.3.4.1 General
5.3.4.2 Lintels
5.3.4.3 Piers
5.3.4.4 Timber
5.3.4.5 Crushed rock
5.3.4.6 Unstable ground beneath slabs
5.3.4.7 Water-charged conditions
5.3.5 Backfill material
5.3.6 Backfilling
5.4 STORMWATER DRAINS IN OTHER THAN TRENCHES
5.4.1 Tunnel
5.4.2 Bored hole
5.5 SUBSOIL DRAINS
5.5.1 General
5.5.2 Bedding material
5.5.2.1 Pipe underlay and bed zone
5.5.2.2 Other bedding material
5.5.3 Installation
5.5.4 Backfill material
5.5.5 Backfilling
5.6 LANDSLIP AREAS
5.6.1 General
5.6.2 Classification
5.6.3 Construction
5.6.3.1 Requirements
5.6.3.2 Additional requirments
5.7 MINE SUBSIDENCE AREAS
5.7.1 General
5.7.2 Pipes and fittings
5.7.2.1 Rubber ring joints
5.7.2.2 UPVC
5.7.2.3 Vitrified clay
5.7.3 Construction
5.8 EXPANSIVE SOIL
6 PIPEWORK
6.1 SCOPE OF SECTION
6.2 LOCATION
6.3 SUPPORT AND FIXING
6.3.1 Brackets, clips and hangers
6.3.2 Prohibited supports
6.4 CONCEALMENT
6.4.1 Access
6.4.2 Structural concrete
6.4.3 Dry wall construction
6.4.4 Common walls
6.4.5 Extension of inspection openings
6.5 TESTING AND INSPECTION OPENINGS
6.6 JOINTING
6.6.1 General
6.6.2 Methods
6.6.2.1 Bolted gland (BG)
6.6.2.2 Rubber ring (RR)
6.6.2.3 Epoxy resin (ER)
6.6.2.4 Cement mortar (CM)
6.6.2.5 Silver brazed (SB)
6.6.2.6 Soft soldered (SS)
6.6.2.7 Solvent cement (SC)
6.6.2.8 Threaded (TH)
6.6.2.9 Fusion welded (FW)
6.6.2.10 Band clamped sleeve (BC)
6.7 DISUSE OF ROOFWATER SYSTEM
6.8 IDENTIFICATION OF PIPES
7 PUMPED DISCHARGE
7.1 SCOPE OF SECTION
7.2 GENERAL
7.3 WET WELLS
7.3.1 General
7.3.2 Construction and materials
7.3.3 Base
7.3.4 Cover
7.3.5 Ladders
7.3.6 Effective storage
7.3.7 Alarm
7.3.8 Inlet
7.3.9 Sealing
7.4 PUMPS
7.5 RISING MAINS
7.6 ELECTRICAL CONNECTION
8 TESTING OF STORMWATER INSTALLATIONS
8.1 SCOPE OF SECTION
8.2 INTERNAL GUTTERS AND DOWNPIPES
8.3 STORMWATER DRAINS IN OR UNDER BUILDINGS
8.3.1 General
8.3.2 Water test
8.3.3 Airtest
8.4 RISING MAINS
8.5 ROOFWATER SYSTEMS
APPENDIX A
APPENDIX B
APPENDIX C
C1 SCOPE
C2 PRINCIPLES OF CLASSIFICATION
C3 CLASSIFICATIONS
C4 MULTIPLE CLASSIFICATION
APPENDIX D
D1 SCOPE
D2 PROCEDURE
D3 WORKED EXAMPLE
APPENDIX E
Cited references in this standard
Content history
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