AS/NZS 3500.1:2018
Plumbing and drainage Part 1: Water services
Specifies requirements for the design, installation and commissioning of cold water services from a point of connection to the points of discharge, and non-drinking water from a point of connection to the points of discharge. It applies to new installations as well as alterations, additions and repairs to existing installations.
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AS/NZS 3500.1:2018 PLUMBING AND DRAINAGE - WATER SERVICES
PREFACE
CONTENTS
SECTION 1 SCOPE AND GENERAL
1.1 SCOPE
1.2 APPLICATION
1.2.1 Australia
1.2.2 New Zealand
1.3 NORMATIVE REFERENCES
1.4 DEFINITIONS
1.4.1 Combined tanks
1.4.2 Point of connection
1.5 ABBREVIATIONS
1.6 EQUIVALENT PIPE SIZES
1.7 FACILITIES FOR PEOPLE WITH DISABILITIES
1.8 TERMITE MANAGEMENT
SECTION 2 MATERIALS AND PRODUCTS
2.1 SCOPE OF SECTION
2.2 AUTHORIZATION
2.3 SELECTION AND USE OF MATERIALS AND PRODUCTS
2.4 LIMITATIONS ON USE OF PIPES AND FITTINGS
2.4.1 General limitations
2.4.2 Metallic pipes and fittings
2.4.3 Plastics pipes and fittings
2.5 SAFE-TRAYS AND WASTE PIPES
2.6 JOINTS
2.6.1 Flanged joints
2.6.2 Elastomeric seals
2.6.3 Silver brazing alloy
2.6.4 Solvent cement and priming fluid
2.6.5 Filler rods for stainless steel joints
2.7 CONCRETE AND MORTAR
2.7.1 Concrete mix
2.7.2 Cement mortar
2.7.3 Chemical admixtures
2.7.4 Water for concrete and mortar
2.7.5 Steel reinforcement
2.8 MISCELLANEOUS MATERIALS
2.8.1 Timber
2.8.2 External protective coatings
2.9 BACKFLOW PREVENTION DEVICES
SECTION 3 SIZING OF WATER SERVICES
3.1 SCOPE OF SECTION
3.2 FLOW REQUIREMENTS
3.2.1 Flow rates
3.2.2 Loading units
3.2.3 Probable simultaneous demand (PSD)
3.2.4 Probable simultaneous flow rate (PSFR)
3.3 PRESSURE REQUIREMENTS
3.3.1 Available pressure
3.3.2 Pressure at outlets
3.3.3 Pressure losses
3.3.4 Maximum pressure within buildings
3.3.5 Availability of water supply
3.4 VELOCITY REQUIREMENTS
3.5 PIPE SIZE LIMITATIONS
3.5.1 Water service
3.5.2 Branch offtakes
SECTION 4 CROSS-CONNECTION CONTROL AND BACKFLOW PREVENTION
4.1 SCOPE OF SECTION
4.2 PROTECTION OF WATER SUPPLIES
4.2.1 Design
4.2.2 Protection against contaminants
4.2.3 Combined tanks
4.2.4 Alternative water supplies
4.2.5 Integral backflow prevention
4.3 CROSS-CONNECTION HAZARD RATING
4.4 PROVISION OF BACKFLOW PREVENTION DEVICES
4.4.1 General
4.4.2 Type of backflow protection
4.4.3 Hose taps
4.4.4 Additional backflow protection
4.4.5 Water downstream of backflow prevention device
4.4.6 Commissioning and maintenance
4.4.7 Heated water systems
4.5 SUITABILITY OF DEVICES FOR HAZARDS
4.6 INSTALLATION OF BACKFLOW PREVENTION DEVICES
4.6.1 General installation requirements
4.6.2 Location of devices
4.6.3 Specific installation requirements for testable and non-testable devices
SECTION 5 INSTALLATION OF COLD WATER SERVICES
5.1 SCOPE OF SECTION
5.2 PROXIMITY TO OTHER SERVICES
5.2.1 General
5.2.2 Separation from above-ground electrical conduit, wire, cable or consumer gas pipes or sanitary plumbing and drainage
5.2.3 Separation from underground electrical supply cables or consumer gas pipes
5.2.4 Separation from underground electrical earthing electrode
5.2.5 Separation from underground communication cable
5.2.6 Separation from underground drains
5.2.7 Separation from non-drinking water
5.2.8 Separation from other underground services
5.2.9 Crossover of other underground services
5.2.10 Clearance from underground obstructions
5.3 ISOLATING VALVES
5.3.1 General
5.3.2 Location
5.3.3 On fire services
5.3.4 Multiple dwellings
5.3.5 Maintenance
5.4 LOCATION OF PIPING
5.4.1 Location
5.4.2 Concealed piping
5.4.3 Chases, ducts or conduits
5.4.4 Under concrete slabs
5.5 METHODS OF JOINTING
5.5.1 General
5.5.2 Threading
5.5.3 Bolted gland and gibault type joints
5.5.4 Joining of copper and copper alloy pipes
5.5.5 Compression joints
5.5.6 Flanged joints
5.5.7 Roll-grooved joints
5.5.8 Silver brazing
5.5.9 Solvent cement joints
5.5.10 Jointing of stainless steel pipe and fittings
5.5.11 Jointing of dissimilar metallic pipes and fittings below ground
5.6 SUPPORT AND FIXING ABOVE GROUND
5.6.1 General
5.6.2 Brackets, clips and hangers
5.6.3 Limitations of pipe supports
5.6.4 Spacing
5.6.5 Securing of pipes and fittings
5.7 STANDPIPES
5.8 ANCHORAGE BELOW GROUND
5.8.1 General
5.8.2 Location of thrust blocks
5.8.3 Construction of thrust blocks
5.9 DEPTH OF COVER
5.10 BEDDING AND BACKFILL
5.11 INSTALLATION IN CONTAMINATED AREAS
5.12 CORROSIVE AREAS
5.13 PIPES IN WATER-CHARGED OR FILLED GROUND
5.14 OPEN CHANNELS OR WATERCOURSES
5.15 PRIVATE EASEMENTS
5.15.1 Proximity of water services
5.15.2 Depth of piping
5.16 DRY SERVICES
5.17 PROTECTION AGAINST FREEZING
5.17.1 General
5.17.2 Piping located outside buildings
5.17.3 Pipes located on metal roofs
5.17.4 Pipes located inside buildings
5.17.5 Insulation of piping
5.18 IDENTIFICATION OF PIPING
5.19 TEMPERATURE CONTROL DEVICES
5.20 BUSHFIRE ZONES
SECTION 6 FIRE SERVICES
6.1 SCOPE OF SECTION
6.2 MATERIALS AND PRODUCTS
6.3 INSTALLATION
6.4 WATER STORAGE TANKS
6.5 IDENTIFICATION
SECTION 7 IRRIGATION AND LAWN WATERING SYSTEMS
7.1 SCOPE OF SECTION
7.2 SYSTEM TYPES
7.3 BACKFLOW PROTECTION REQUIREMENTS
7.4 MATERIALS
SECTION 8 WATER STORAGE TANKS
8.1 SCOPE OF SECTION
8.2 PURPOSE OF TANKS
8.2.1 General
8.2.2 Limitations on use
8.3 DESIGN AND INSTALLATION REQUIREMENTS
8.3.1 General
8.3.2 Capacity of storage tanks-Measurement
8.3.3 Access
8.3.4 Placement of tank
8.4 TANK DESIGN
8.4.1 General
8.4.2 Internal corrosion protection
8.4.3 Tank cover
8.4.4 Tank overflow
8.5 INLET PIPING
8.5.1 Connections
8.5.2 Stop valve
8.6 OUTLET PIPING
8.6.1 Connections
8.6.2 Service outlets
8.7 SLUDGE VALVES
8.8 SAFE-TRAY
8.8.1 General
8.8.2 Safe-tray construction
8.8.3 Overflow
8.9 MARKING OF TANKS
SECTION 9 NON-DRINKING WATER SERVICES
9.1 SCOPE OF SECTION
9.2 MATERIALS AND PRODUCTS
9.2.1 General
9.2.2 Water meters
9.3 INSTALLATION REQUIREMENTS
9.3.1 Installation
9.3.2 Proximity to other services
9.4 CROSS-CONNECTION CONTROL
9.5 TEMPORARY BYPASS
9.6 IDENTIFICATION OF NON-DRINKING WATER SERVICES
9.6.1 Colour of non-drinking water pipework
9.6.2 Marking of non-drinking water pipework
9.6.3 Identification of buried non-drinking water services
9.6.4 Installation of underground marking tape
9.7 NON-DRINKING WATER OUTLETS
9.7.1 External non-drinking hose tap outlets
9.7.2 Identification of all non-drinking water outlets
9.8 TESTING AND COMMISSIONING A NON-DRINKING WATER SERVICE
9.8.1 Flushing and testing
9.8.2 Commissioning a non-drinking water service
SECTION 10 TREATED GREYWATER SERVICES
10.1 SCOPE OF SECTION
10.2 MATERIALS AND PRODUCTS
10.3 CROSS-CONNECTION CONTROL
10.4 INSTALLATION
SECTION 11 WATER FOR SANITARY FLUSHING
11.1 SCOPE OF SECTION
11.2 GENERAL
11.3 WATER CLOSET
11.4 URINALS
11.5 INSTALLATION OF CISTERNS
11.5.1 General
11.5.2 Urinal type cisterns
11.5.3 Manually operated cisterns
11.5.4 Water closet pan and slop hopper pan type cisterns
11.6 FLUSH VALVES SUPPLIED FROM BREAK TANKS
11.6.1 General
11.6.2 Capacity
11.6.3 Operating head
11.6.4 Pipe size guide
11.6.5 Urinal flush valves
11.7 FLUSH PIPES AND WATER FLOW DISTRIBUTION
11.8 PRESSURE RATIO VALVES
11.8.1 General
11.8.2 Requirement for pressure gauges
11.9 FLUSH VALVES CONNECTED TO THE DRINKING WATER SERVICE
11.9.1 General
11.9.2 Compatibility
11.9.3 Pipe size
11.9.4 Protection
11.9.5 Location
11.9.6 Pressure and velocity limitations
11.9.7 Branch service pipe
SECTION 12 INSTALLATION OF WATER SUPPLY TO SPECIFIED FIXTURES
12.1 SCOPE OF SECTION
12.2 BIDET, BIDETTE AND TOILET SEAT DOUCHE
12.2.1 Bidets
12.2.2 Bidette
12.2.3 Toilet seat douches
SECTION 13 PUMPS
13.1 SCOPE OF SECTION
13.2 GENERAL
13.3 CONTROL OF PUMPS
13.4 INSTALLATION OF PUMPS
13.5 BOOSTER PUMPS
SECTION 14 WATER REQUIREMENTS FOR HAEMODIALYSIS MACHINES
14.1 SCOPE OF SECTION
14.2 CONNECTION TO THE WATER SERVICE
14.3 MAINTENANCE OF FLOW RATE
14.4 WATER METERS
SECTION 15 PROPERTY WATER METERS
15.1 SCOPE OF SECTION
15.2 LOCATION OF WATER METERS
15.3 INSTALLATION INSIDE BUILDINGS
15.4 INSTALLATION BELOW GROUND
15.5 PROTECTION FROM MECHANICAL DAMAGE
15.6 FROST PROTECTION
SECTION 16 INSTALLATION OF WATER SUPPLY SYSTEM FROM RAINWATER TANKS
16.1 SCOPE OF SECTION
16.2 PIPES, VALVES AND FITTINGS
16.3 INSTALLATION
16.3.1 General
16.3.2 Additional marking and signage of pipework and outlets
16.3.3 Connection between service pipes
16.4 PROTECTION OF OTHER WATER SUPPLIES FROM RAINWATER
16.5 TESTING AND COMMISSIONING A RAINWATER SYSTEM
16.5.1 Flushing and testing
16.5.2 Commissioning a rainwater system
SECTION 17 MULTI-UNIT DEVELOPMENTS
17.1 SCOPE OF SECTION
17.2 METHODS OF DESIGN AND INSTALLATION
17.3 DIVISION OF DEVELOPMENT
17.4 RING MAINS AND FLUSHING POINTS
17.5 FIRE SERVICES
SECTION 18 TESTING AND COMMISSIONING
18.1 SCOPE OF SECTION
18.2 FLUSHING
18.3 TESTING
18.3.1 Hydrostatic test
18.3.2 Storage tanks (except rainwater tanks)
18.4 CLEANING AND DISINFECTION OF DRINKING WATER STORAGE TANKS
18.5 DISINFECTION OF WATER SERVICES
18.6 COMMISSIONING
APPENDIX A - EQUIVALENT PIPE SIZES
APPENDIX B - ACCEPTABLE PIPES AND FITTINGS
APPENDIX C - SIZING METHOD FOR SUPPLY PIPING FOR DWELLINGS
C1 GENERAL
C2 PROCEDURE
C3 WORKED EXAMPLE
APPENDIX D - SIZING OF PIPING FOR DWELLINGS
D1 GENERAL
D2 PROCEDURE
D3 WORKED EXAMPLE
APPENDIX E - EXAMPLES OF POTENTIAL CROSS-CONNECTIONS
E1 SCOPE
E2 POTENTIAL CROSS-CONNECTIONS
APPENDIX F - TYPES OF BACKFLOW PROTECTION
APPENDIX G - STORAGE TANKS-INFLOW AND OVERFLOW
G1 GENERAL
G2 INFLOW RATE
G3 OVERFLOW SIZE AND SPILLING LEVEL
G4 AIR GAP
G5 HEIGHT OF INLET ABOVE INVERT LEVEL OF OVERFLOW
APPENDIX H - CLEANING AND DISINFECTION OF STORAGE TANKS
H1 GENERAL
H2 CLEANING
H3 DISINFECTION
APPENDIX I - DISINFECTION OF WATER SERVICES
I1 GENERAL
I2 PRECAUTIONS AGAINST CONTAMINATION
I3 FLUSHING OF WATER SERVICES
I4 CHLORINATION
I5 FINAL FLUSHING
BIBLIOGRAPHY
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Related Information
Building Code Compliance Document G12
Ministry: Ministry of Business, Innovation, and Employment - Building Systems Performance (BSP)
Section: VM1
Citation context:AS1 Revoked 01/11/2023
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AS/NZS 3500.1:2018 PLUMBING AND DRAINAGE - WATER SERVICES
PREFACE
CONTENTS
SECTION 1 SCOPE AND GENERAL
1.1 SCOPE
1.2 APPLICATION
1.2.1 Australia
1.2.2 New Zealand
1.3 NORMATIVE REFERENCES
1.4 DEFINITIONS
1.4.1 Combined tanks
1.4.2 Point of connection
1.5 ABBREVIATIONS
1.6 EQUIVALENT PIPE SIZES
1.7 FACILITIES FOR PEOPLE WITH DISABILITIES
1.8 TERMITE MANAGEMENT
SECTION 2 MATERIALS AND PRODUCTS
2.1 SCOPE OF SECTION
2.2 AUTHORIZATION
2.3 SELECTION AND USE OF MATERIALS AND PRODUCTS
2.4 LIMITATIONS ON USE OF PIPES AND FITTINGS
2.4.1 General limitations
2.4.2 Metallic pipes and fittings
2.4.3 Plastics pipes and fittings
2.5 SAFE-TRAYS AND WASTE PIPES
2.6 JOINTS
2.6.1 Flanged joints
2.6.2 Elastomeric seals
2.6.3 Silver brazing alloy
2.6.4 Solvent cement and priming fluid
2.6.5 Filler rods for stainless steel joints
2.7 CONCRETE AND MORTAR
2.7.1 Concrete mix
2.7.2 Cement mortar
2.7.3 Chemical admixtures
2.7.4 Water for concrete and mortar
2.7.5 Steel reinforcement
2.8 MISCELLANEOUS MATERIALS
2.8.1 Timber
2.8.2 External protective coatings
2.9 BACKFLOW PREVENTION DEVICES
SECTION 3 SIZING OF WATER SERVICES
3.1 SCOPE OF SECTION
3.2 FLOW REQUIREMENTS
3.2.1 Flow rates
3.2.2 Loading units
3.2.3 Probable simultaneous demand (PSD)
3.2.4 Probable simultaneous flow rate (PSFR)
3.3 PRESSURE REQUIREMENTS
3.3.1 Available pressure
3.3.2 Pressure at outlets
3.3.3 Pressure losses
3.3.4 Maximum pressure within buildings
3.3.5 Availability of water supply
3.4 VELOCITY REQUIREMENTS
3.5 PIPE SIZE LIMITATIONS
3.5.1 Water service
3.5.2 Branch offtakes
SECTION 4 CROSS-CONNECTION CONTROL AND BACKFLOW PREVENTION
4.1 SCOPE OF SECTION
4.2 PROTECTION OF WATER SUPPLIES
4.2.1 Design
4.2.2 Protection against contaminants
4.2.3 Combined tanks
4.2.4 Alternative water supplies
4.2.5 Integral backflow prevention
4.3 CROSS-CONNECTION HAZARD RATING
4.4 PROVISION OF BACKFLOW PREVENTION DEVICES
4.4.1 General
4.4.2 Type of backflow protection
4.4.3 Hose taps
4.4.4 Additional backflow protection
4.4.5 Water downstream of backflow prevention device
4.4.6 Commissioning and maintenance
4.4.7 Heated water systems
4.5 SUITABILITY OF DEVICES FOR HAZARDS
4.6 INSTALLATION OF BACKFLOW PREVENTION DEVICES
4.6.1 General installation requirements
4.6.2 Location of devices
4.6.3 Specific installation requirements for testable and non-testable devices
SECTION 5 INSTALLATION OF COLD WATER SERVICES
5.1 SCOPE OF SECTION
5.2 PROXIMITY TO OTHER SERVICES
5.2.1 General
5.2.2 Separation from above-ground electrical conduit, wire, cable or consumer gas pipes or sanitary plumbing and drainage
5.2.3 Separation from underground electrical supply cables or consumer gas pipes
5.2.4 Separation from underground electrical earthing electrode
5.2.5 Separation from underground communication cable
5.2.6 Separation from underground drains
5.2.7 Separation from non-drinking water
5.2.8 Separation from other underground services
5.2.9 Crossover of other underground services
5.2.10 Clearance from underground obstructions
5.3 ISOLATING VALVES
5.3.1 General
5.3.2 Location
5.3.3 On fire services
5.3.4 Multiple dwellings
5.3.5 Maintenance
5.4 LOCATION OF PIPING
5.4.1 Location
5.4.2 Concealed piping
5.4.3 Chases, ducts or conduits
5.4.4 Under concrete slabs
5.5 METHODS OF JOINTING
5.5.1 General
5.5.2 Threading
5.5.3 Bolted gland and gibault type joints
5.5.4 Joining of copper and copper alloy pipes
5.5.5 Compression joints
5.5.6 Flanged joints
5.5.7 Roll-grooved joints
5.5.8 Silver brazing
5.5.9 Solvent cement joints
5.5.10 Jointing of stainless steel pipe and fittings
5.5.11 Jointing of dissimilar metallic pipes and fittings below ground
5.6 SUPPORT AND FIXING ABOVE GROUND
5.6.1 General
5.6.2 Brackets, clips and hangers
5.6.3 Limitations of pipe supports
5.6.4 Spacing
5.6.5 Securing of pipes and fittings
5.7 STANDPIPES
5.8 ANCHORAGE BELOW GROUND
5.8.1 General
5.8.2 Location of thrust blocks
5.8.3 Construction of thrust blocks
5.9 DEPTH OF COVER
5.10 BEDDING AND BACKFILL
5.11 INSTALLATION IN CONTAMINATED AREAS
5.12 CORROSIVE AREAS
5.13 PIPES IN WATER-CHARGED OR FILLED GROUND
5.14 OPEN CHANNELS OR WATERCOURSES
5.15 PRIVATE EASEMENTS
5.15.1 Proximity of water services
5.15.2 Depth of piping
5.16 DRY SERVICES
5.17 PROTECTION AGAINST FREEZING
5.17.1 General
5.17.2 Piping located outside buildings
5.17.3 Pipes located on metal roofs
5.17.4 Pipes located inside buildings
5.17.5 Insulation of piping
5.18 IDENTIFICATION OF PIPING
5.19 TEMPERATURE CONTROL DEVICES
5.20 BUSHFIRE ZONES
SECTION 6 FIRE SERVICES
6.1 SCOPE OF SECTION
6.2 MATERIALS AND PRODUCTS
6.3 INSTALLATION
6.4 WATER STORAGE TANKS
6.5 IDENTIFICATION
SECTION 7 IRRIGATION AND LAWN WATERING SYSTEMS
7.1 SCOPE OF SECTION
7.2 SYSTEM TYPES
7.3 BACKFLOW PROTECTION REQUIREMENTS
7.4 MATERIALS
SECTION 8 WATER STORAGE TANKS
8.1 SCOPE OF SECTION
8.2 PURPOSE OF TANKS
8.2.1 General
8.2.2 Limitations on use
8.3 DESIGN AND INSTALLATION REQUIREMENTS
8.3.1 General
8.3.2 Capacity of storage tanks-Measurement
8.3.3 Access
8.3.4 Placement of tank
8.4 TANK DESIGN
8.4.1 General
8.4.2 Internal corrosion protection
8.4.3 Tank cover
8.4.4 Tank overflow
8.5 INLET PIPING
8.5.1 Connections
8.5.2 Stop valve
8.6 OUTLET PIPING
8.6.1 Connections
8.6.2 Service outlets
8.7 SLUDGE VALVES
8.8 SAFE-TRAY
8.8.1 General
8.8.2 Safe-tray construction
8.8.3 Overflow
8.9 MARKING OF TANKS
SECTION 9 NON-DRINKING WATER SERVICES
9.1 SCOPE OF SECTION
9.2 MATERIALS AND PRODUCTS
9.2.1 General
9.2.2 Water meters
9.3 INSTALLATION REQUIREMENTS
9.3.1 Installation
9.3.2 Proximity to other services
9.4 CROSS-CONNECTION CONTROL
9.5 TEMPORARY BYPASS
9.6 IDENTIFICATION OF NON-DRINKING WATER SERVICES
9.6.1 Colour of non-drinking water pipework
9.6.2 Marking of non-drinking water pipework
9.6.3 Identification of buried non-drinking water services
9.6.4 Installation of underground marking tape
9.7 NON-DRINKING WATER OUTLETS
9.7.1 External non-drinking hose tap outlets
9.7.2 Identification of all non-drinking water outlets
9.8 TESTING AND COMMISSIONING A NON-DRINKING WATER SERVICE
9.8.1 Flushing and testing
9.8.2 Commissioning a non-drinking water service
SECTION 10 TREATED GREYWATER SERVICES
10.1 SCOPE OF SECTION
10.2 MATERIALS AND PRODUCTS
10.3 CROSS-CONNECTION CONTROL
10.4 INSTALLATION
SECTION 11 WATER FOR SANITARY FLUSHING
11.1 SCOPE OF SECTION
11.2 GENERAL
11.3 WATER CLOSET
11.4 URINALS
11.5 INSTALLATION OF CISTERNS
11.5.1 General
11.5.2 Urinal type cisterns
11.5.3 Manually operated cisterns
11.5.4 Water closet pan and slop hopper pan type cisterns
11.6 FLUSH VALVES SUPPLIED FROM BREAK TANKS
11.6.1 General
11.6.2 Capacity
11.6.3 Operating head
11.6.4 Pipe size guide
11.6.5 Urinal flush valves
11.7 FLUSH PIPES AND WATER FLOW DISTRIBUTION
11.8 PRESSURE RATIO VALVES
11.8.1 General
11.8.2 Requirement for pressure gauges
11.9 FLUSH VALVES CONNECTED TO THE DRINKING WATER SERVICE
11.9.1 General
11.9.2 Compatibility
11.9.3 Pipe size
11.9.4 Protection
11.9.5 Location
11.9.6 Pressure and velocity limitations
11.9.7 Branch service pipe
SECTION 12 INSTALLATION OF WATER SUPPLY TO SPECIFIED FIXTURES
12.1 SCOPE OF SECTION
12.2 BIDET, BIDETTE AND TOILET SEAT DOUCHE
12.2.1 Bidets
12.2.2 Bidette
12.2.3 Toilet seat douches
SECTION 13 PUMPS
13.1 SCOPE OF SECTION
13.2 GENERAL
13.3 CONTROL OF PUMPS
13.4 INSTALLATION OF PUMPS
13.5 BOOSTER PUMPS
SECTION 14 WATER REQUIREMENTS FOR HAEMODIALYSIS MACHINES
14.1 SCOPE OF SECTION
14.2 CONNECTION TO THE WATER SERVICE
14.3 MAINTENANCE OF FLOW RATE
14.4 WATER METERS
SECTION 15 PROPERTY WATER METERS
15.1 SCOPE OF SECTION
15.2 LOCATION OF WATER METERS
15.3 INSTALLATION INSIDE BUILDINGS
15.4 INSTALLATION BELOW GROUND
15.5 PROTECTION FROM MECHANICAL DAMAGE
15.6 FROST PROTECTION
SECTION 16 INSTALLATION OF WATER SUPPLY SYSTEM FROM RAINWATER TANKS
16.1 SCOPE OF SECTION
16.2 PIPES, VALVES AND FITTINGS
16.3 INSTALLATION
16.3.1 General
16.3.2 Additional marking and signage of pipework and outlets
16.3.3 Connection between service pipes
16.4 PROTECTION OF OTHER WATER SUPPLIES FROM RAINWATER
16.5 TESTING AND COMMISSIONING A RAINWATER SYSTEM
16.5.1 Flushing and testing
16.5.2 Commissioning a rainwater system
SECTION 17 MULTI-UNIT DEVELOPMENTS
17.1 SCOPE OF SECTION
17.2 METHODS OF DESIGN AND INSTALLATION
17.3 DIVISION OF DEVELOPMENT
17.4 RING MAINS AND FLUSHING POINTS
17.5 FIRE SERVICES
SECTION 18 TESTING AND COMMISSIONING
18.1 SCOPE OF SECTION
18.2 FLUSHING
18.3 TESTING
18.3.1 Hydrostatic test
18.3.2 Storage tanks (except rainwater tanks)
18.4 CLEANING AND DISINFECTION OF DRINKING WATER STORAGE TANKS
18.5 DISINFECTION OF WATER SERVICES
18.6 COMMISSIONING
APPENDIX A - EQUIVALENT PIPE SIZES
APPENDIX B - ACCEPTABLE PIPES AND FITTINGS
APPENDIX C - SIZING METHOD FOR SUPPLY PIPING FOR DWELLINGS
C1 GENERAL
C2 PROCEDURE
C3 WORKED EXAMPLE
APPENDIX D - SIZING OF PIPING FOR DWELLINGS
D1 GENERAL
D2 PROCEDURE
D3 WORKED EXAMPLE
APPENDIX E - EXAMPLES OF POTENTIAL CROSS-CONNECTIONS
E1 SCOPE
E2 POTENTIAL CROSS-CONNECTIONS
APPENDIX F - TYPES OF BACKFLOW PROTECTION
APPENDIX G - STORAGE TANKS-INFLOW AND OVERFLOW
G1 GENERAL
G2 INFLOW RATE
G3 OVERFLOW SIZE AND SPILLING LEVEL
G4 AIR GAP
G5 HEIGHT OF INLET ABOVE INVERT LEVEL OF OVERFLOW
APPENDIX H - CLEANING AND DISINFECTION OF STORAGE TANKS
H1 GENERAL
H2 CLEANING
H3 DISINFECTION
APPENDIX I - DISINFECTION OF WATER SERVICES
I1 GENERAL
I2 PRECAUTIONS AGAINST CONTAMINATION
I3 FLUSHING OF WATER SERVICES
I4 CHLORINATION
I5 FINAL FLUSHING
BIBLIOGRAPHY
Amendments
Previous versions
AS/NZS 3500.1:2018
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