Handbook
Track updates
HB 230-2008
[Pending Revision]Rainwater Tank Design and Installation Handbook
This Handbook provides practical information for the collection, storage and use of rainwater within private, community and commercial properties (excluding rainwater used in industrial processes). It outlines minimum standards and performance criteria, and applies to new rainwater tank installations as well as alterations, additions, maintenance and repairs to existing installations.
Published: 20/01/2031
Pages: 103
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
Chapter 1 Performance objectives
Chapter 2 Performance
2.1 General
2.2 Rainwater supply installations
2.3 Rainwater tank installation approvals
2.4 Rainwater detention
2.5 Bushfire rainwater storage requirements
2.6 Community/commercial buildings
Chapter 3 Rainwater use
3.1 General uses of rainwater
3.2 Plumbing appliances using rainwater
3.3 Local/state government water restrictions
Chapter 4 Occupational Health and Safety
4.1 General
4.2 Lifting of tanks
4.3 Trench and excavations
4.4 Confined spaces
4.5 Working at heights
4.6 Site assessment
4.7 Maintenance and service
Chapter 5 Design and installation requirements
5.1 Amenity
5.2 Legislation
5.3 Rainwater tank setback requirements
5.4 Authorisation materials and products
5.4.1 General
5.4.2 Rainwater systems
5.4.3 Polyethylene tanks
5.4.4 Metal tanks
5.4.5 Concrete tanks
5.4.6 Flexible tanks (e.g, water bags or bladders)
5.4.7 Other materials
5.5 Rainwater tank sizing
5.6 Rainwater tank openings
5.7 Above-ground tanks/tank stands
5.8 Gravity feed rainwater systems
5.9 Stormwater pipes and fittings
5.9.1 General
5.9.2 Stormwater drainage
5.9.3 Stormwater drainage
5.9.4 Roof drainage
5.9.5 Rainwater tank overflow—Point of discharge
5.9.6 Siphonic roof drainage systems (commercial buildings)
5.10 Rainwater service pipe from rainwater tank
5.10.1 General
5.11 Rainwater tank connection devices in contact with the network utility drinking water
5.11.1 General
5.11.2 Devices for control of rainwater and water utilities supply connections
5.11.3 Tank top-up device
5.11.4 Interconnect device
5.12 Rainwater tank connected to single source pump
5.13 Flexible rainwater tanks
5.14 On-ground, in-slab rainwater storage tanks
5.15 Underground rainwater tanks
5.16 Hydrostatic lift—Ballast calculations
Chapter 6 Pressure and pumps
6.1 General
6.2 Pump selection criteria
6.3 Pump noise
6.4 Pump projection installation
6.5 Pump performance
6.6 Minimum and maximum flow rates and pressure requirements
Chapter 7 Rainwater marking and labelling
7.1 General
7.2 Pipe markings
7.3 Irrigation pipe
7.4 External tap signage
Chapter 8 Backflow prevention
8.1 General
8.2 Network utility operator’s water supply tank top-up requirements
Chapter 9 Management of rainwater quality
9.1 General
9.2 Minimising contamination
9.3 Pre-storage treatment devices
9.4 Vermin and insect-proof screen
9.4.1 General
9.4.2 Mosquito control
9.5 Rainwater filtration
9.5.1 General
9.5.2 Pre-storage filtration
9.5.3 Post-storage filtration
9.6 Rainwater treatment
9.6.1 General
9.6.2 Ultraviolet (UV) light treatment
9.6.3 Chemical disinfection—Chlorination
9.6.4 Boiling
Chapter 10 Monitoring and maintenance
10.1 General
Chapter 11 Rebates and building recommendations
Chapter 12 Rainfall data
Chapter 13 Calculating expected annual rainwater catchment
13.1 General
13.2 Formula
13.3 Rainwater collection calculations
13.3.1 Sydney example—Calculation 1
13.3.2 Perth example—Calculation 2
13.3.3 Queensland example—Calculation 3
Chapter 14 Average water consumption values for urban activities
Chapter 15 Acceptable rainwater installations—Technical drawings
15.1 General
15.2 Above-ground rainwater tank installation
15.2.1 Common above-ground rainwater tank systems
15.2.2 Above-ground rainwater tank installation on sloping ground
15.3 Underground rainwater tank installation
15.4 Under floor rainwater tank installation
Chapter 16 End user—Rainwater tank checklist
Chapter 17 Abbreviations
Chapter 18 Glossary of terms
Chapter 19 References
19.1 Standards
19.2 Other references
Appendix A
Cited references in this standard
Content history
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