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Difference between revisions of "First-flush device"

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(First flush devices on Appropedia pages)
(no longer a stub... has images and links to systems and calcs. (Lonny not logged in))
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* [[Original:Ersson rainwater harvest and purification #Roofwashers]]
 
* [[Original:Ersson rainwater harvest and purification #Roofwashers]]
 
* [[WaterPod FBD Rainwater Purification #Description of Final Project]]
 
* [[WaterPod FBD Rainwater Purification #Description of Final Project]]
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* [[Daycare rainwater catchment system#The First Flush Sediment Trap]]
  
==External links==
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== Examples of a redesigned first flush ==
  
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<Gallery caption="Various First Flush Systems">
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File:RWH7.jpg|[[Original:Rainwater_harvesting#First flush systems|Practical Action Rainwater Harvesting]] <br> a) the tipping gutter first flush system and b) the floating ball first flush system.
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File:Firstflushassembly.JPG|[[Old Growth Cellar rainwater catchment #First flush bucket|Old Growth Cellar]] <br> 15 gallon first flush tank with side drilled.
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File:Smart-Valve_in_4in_cleanout.jpg|[[Original:Ersson rainwater harvest and purification #Roofwashers|Ersson's roofwasher]] <br> a hollow ball which, when filled by the initial flow of water, seats itself onto a rubber gasket.
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File:FBDsystem.jpg|[[WaterPod FBD Rainwater Purification #Description of Final Project|Waterpod Rainwater Filtering]] <br> See 2) Ball Valve 3) First Flush
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File:Lluvia_filtro_firstflush1.jpg|[[Daycare rainwater catchment system#The First Flush Sediment Trap|Parras Mexico Daycare Rainwater]] <br> The first flush is caught by 4" pipe with a floating ball.
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File:Diseno1.JPG|[[HSU_Chiapas_rainwater_catchment#Juan_Hidalgo.27s_demonstration_house|HSU Chiapas Rainwater]] <br>Old design that leaked replaced by next image.
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File:Diseno2.jpg|[[HSU_Chiapas_rainwater_catchment#Juan_Hidalgo.27s_demonstration_house|HSU Chiapas Rainwater]] <br>New design that use two parallel lengths of pipe.
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File:IMG_0024.JPG|[[CCAT_rainwater_catchment_system#First_Flush_Catchment_System|CCAT Rainwater]]<br>First flush with clear pipe.
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</gallery>
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==Links==
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*[[Basic_rainwater_collection_calculations#First_Flush_Calculations|First Flush Calculations]]
 
*[http://www.saferain.com.au/harvesting.htm Saferain] - Alternative to the Roof Washer
 
*[http://www.saferain.com.au/harvesting.htm Saferain] - Alternative to the Roof Washer
  
{{stub}}
 
 
[[Category:Rainwater]]
 
[[Category:Rainwater]]

Revision as of 20:15, 13 August 2010

The purpose of a first-flush device or first flush diverter is to prevent the entry of debris and toxins into the storage/distribution system of a rainwater catchment system.

First flush devices on Appropedia pages

Examples of a redesigned first flush

Links