Difference between revisions of "Rainwater harvesting: TTT"

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{{Clickable button|[[File:TTT.png|400 px|link=http://www.sustainabletechnologies.ca/wp/low-impact-development-treatment-train-tool/]]}}
 
{{Clickable button|[[File:TTT.png|400 px|link=http://www.sustainabletechnologies.ca/wp/low-impact-development-treatment-train-tool/]]}}
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[[File:Storage TTT.png|thumb|Storage element as displayed in the TTT menu]]
  
 
Once the size of cistern has been determined, it can easily be modeled in many open source and proprietary applications.  
 
Once the size of cistern has been determined, it can easily be modeled in many open source and proprietary applications.  

Revision as of 14:19, 18 September 2017

TTT.png

Storage element as displayed in the TTT menu

Once the size of cistern has been determined, it can easily be modeled in many open source and proprietary applications. For planning purposes, a RWH system can be integrated into a site plan as a storage element, using the TTT.

Stage Storage
Storage type No removal
Catchment (roof) 100% impervious
? Lined
Underlying soil Doesn't matter
Evaporation factor 0
Suction head (mm) 0
Saturated conductivity (mm/hr) 0
Initial soil moisture deficit (fraction) 0
The dimensions of the rainwater cistern can be placed into the fields:
  1. Bottom elevation (m)
  2. Maximum depth (m)
  3. Initial water depth (m)

The Curves table is designed to accommodate ponds of roughly conical dimensions. A rainwater cistern is usually cuboid or cylindrical in shape, so that the area (m2) will remain the same throughout the depth.