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Line 1: + − [[File:Cistern Size.png|thumb|Schematic diagram of the inputs and outputs to a rainwater harvesting cistern]]+ Line 38:
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Rainwater harvesting: Sizing and modeling (view source)
Revision as of 12:16, 26 October 2023
, 6 months agono edit summary
[[File:Cistern Size.png|thumb|550px|Schematic diagram of the inputs and outputs to a rainwater harvesting cistern]]
{{TOClimit}}
{{TOClimit}}
===Simple===
===Simple===
The following approximations
The following approximations
<math>TotalStorage = V_{S} + Y_{0.05}</math>
<math>TotalStorage = V_{S} + Y_{0.05}</math>
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==STEP Rainwater Harvesting Tool==
==STEP Rainwater Harvesting Tool==
[[File:RWH_tank_capacity_table.jpg|thumb|500 px|Quick reference table generated using STEP RWH tool, (data for the City of Toronto (median annual rainfall 678 mm). Optimal cistern size is that providing at least a 2.5% improvement in water savings following an increase of 1,000 Litres in storage capacity.]]
[[File:RWH_tank_capacity_table.jpg|thumb|500 px|Quick reference table generated using STEP RWH tool, (data for the City of Toronto (median annual rainfall 678 mm). Optimal cistern size is that providing at least a 2.5% improvement in water savings following an increase of 1,000 Litres in storage capacity.]]