Changes

[[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.]]

The Sustainable Technologies Evaluation Program have produced a rainwater harvesting design and costing tool specific to Ontario. The tool is in a simple to use Excel format and is free to download.<br>

The Sustainable Technologies Evaluation Program have produced a rainwater harvesting design and costing tool specific to Ontario. The tool is in a simple to use Excel format and is free to download.<br>

{{clickable button|[[File:Connect the Drops.PNG|link=http://www.sustainabletechnologies.ca/wp/home/urban-runoff-green-infrastructure/low-impact-development/rainwater-harvesting/rainwater-harvesting-design-and-costing-tool/]]}}

{{clickable button|[[File:Connect the Drops.PNG|200 px|link=http://www.sustainabletechnologies.ca/wp/home/urban-runoff-green-infrastructure/low-impact-development/rainwater-harvesting/rainwater-harvesting-design-and-costing-tool/]]}}

==STEP Treatment Train Tool==

==STEP Treatment Train Tool==

[[File:TTT.png|400 px|link=http://www.sustainabletechnologies.ca/wp/low-impact-development-treatment-train-tool/]]<br>

[[File:TTT.png|400 px|link=http://www.sustainabletechnologies.ca/wp/low-impact-development-treatment-train-tool/]]<br>

'''[[Rainwater harvesting: TTT]]'''

'''[[Rainwater harvesting: TTT]]'''