BS 8515:2009+A1:2013
$198.66
Rainwater harvesting systems. Code of practice
| Published By | Publication Date | Number of Pages |
| BSI | 2013 | 64 |
This British Standard gives recommendations on the design, installation, testing and maintenance of rainwater harvesting systems supplying non-potable water in the UK.
It covers systems supplying water for domestic water uses (in residential, commercial, industrial or public premises) that do not require potable water quality such as laundry, WC flushing and garden watering. It does not cover systems supplying water for drinking, food preparation and cooking, dishwashing and personal hygiene.
NOTE Although this Standard does not give specific recommendations relating to the use of rainwater for fire suppression or commercial irrigation, these applications are not excluded.
It covers individual and communal systems, and those providing stormwater control. It does not cover water butts.
It also does not cover product design for specific system components.
It applies to retrofitting and new build.
This British Standard does not cover greywater recycling systems, for which see BS 8525-1.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 5 | Foreword |
| 7 | 0 Introduction |
| 8 | Figure 1 Outline examples of rainwater harvesting systems |
| 9 | 1 Scope 2 Normative references |
| 10 | 3 Terms and definitions |
| 12 | 4 Design |
| 15 | Figure 2 Annual average rainfall depths across the UK (1961 – 1990) |
| 16 | Figure 3 �Storage capacities for non-potable domestic water based on Text deleted. average annual rainfall and roof size for small populations (simplified approach) |
| 19 | Table 1 Yield coefficients |
| 24 | Figure 4 Unrestricted Type AA air gap (BS EN 13076) |
| 25 | Figure 5 Unrestricted Type AB air gap with non-circular overflow (BS EN 13077) |
| 29 | 5 Installation |
| 33 | 6 Water quality Figure 6 Dye testing distribution pipework |
| 35 | Table 2 Guideline values (G) for bacteriological monitoring |
| 36 | Table 3 Guideline values (G) for general system monitoring |
| 37 | 7 Maintenance Table 4 Interpretation of results from bacteriological monitoring Table 5 Interpretation of results from system monitoring A) |
| 38 | Table 6 Maintenance schedule |
| 39 | 8 Risk management |
| 40 | Annex A (normative) Sizing for stormwater control |
| 42 | Figure A.1 Additional storage volume VSC, over and above sizing for water saving, for rainwater harvesting tank sizes to provide stormwater control: simplified approach Table A.1 Occupancy by accommodation type and number of bedrooms, England 2004-2007 |
| 46 | Table A.2 Depression storage losses and Yield coefficients Table A.3 Rainwater harvesting tank storage volumes as a function of Y/D and number of bedrooms per property |
| 47 | Figure A.2 Flow chart for sizing of rainwater harvesting tanks for stormwater control |
| 51 | Figure A.3 Rainwater harvesting tanks with active control for stormwater management |
| 53 | Annex B (informative) Examples of typical rainwater harvesting systems with different back-up supply arrangements Figure B.1 Typical system with direct primary supply and Type AA air gap |
| 54 | Figure B.2 Typical system with indirect primary supply and Type AA air gap |
| 55 | Figure B.3 Typical system with module and Type AB air gap |
| 56 | Annex C (normative) Marking and labelling |
| 57 | Figure C.1 Examples of identification tags and their positioning Figure C.2 Signage for points of use supplied by non-potable water |
| 58 | Figure C.3 Signage for points of use supplied by potable water Annex D (normative) Water sampling |
| 59 | Bibliography |
