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| ===The Treatment Train Tool=== | | ====The Treatment Train Tool==== |
| </div> | | </div> |
| <div class="col-md-8"> | | <div class="col-md-8"> |
| <p> Once the size of cistern has been determined, it can easily be modelled in many open source and proprietary applications. </p> | | <p> Once the size of cistern has been determined, it can easily be modeled in many open source and proprietary applications. </p> |
| <p> In addition to the cistern size, this watershed scale modelling requires input information about draw down time. i.e. the rate of use. </p> | | <p> In addition to the cistern size, this watershed scale modelling requires input information about draw down time. i.e. the rate of use. </p> |
| | In a typical configuration: |
| | <ul> |
| | <li>The catchment (roof) would be 100% impervious</li> |
| | <li>The rainwater harvesting system would be a 'Storage' Element with the following properties:</li> |
| | <ul> |
| | <li>Storage type = No removal</li> |
| | <li>Lined</li> |
| | <li>Underlying soil = <em>doesn't matter, can ignore</em></li> |
| | <li>Evaporation factor = 0</li> |
| | <li>Suction head (mm) = 0</li> |
| | <li>Saturated conductivity (mm/hr) = 0</li> |
| | <li>Initial soil moisture deficit (fraction) = 0</li> |
| | </ul> |
| | The dimensions of the rainwater cistern can be placed into the fields: |
| | <ol> |
| | <li>Bottom elevation (m)</li> |
| | <li>Maximum depth (m)</li> |
| | <li>Initial water depth (m)</li> |
| | <li>The Curves table is set up to accommodate ponds of roughly conical dimensions. A rainwater cistern is usually cuboid or cylindrical in shape, so that the area (m<sup>2</sup>) will remain the same throughout the depth. </li> |
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| </div> | | </div> |
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| {{:Feedback}}
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| [[category:modeling]] | | [[category:modeling]] |