(First flush devices on Appropedia pages) |
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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]] | ||
* [[Daycare rainwater catchment system#The First Flush Sediment Trap]] | |||
== | == Examples of a redesigned first flush == | ||
<Gallery caption="Various First Flush Systems"> | |||
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. | |||
File:Firstflushassembly.JPG|[[Old Growth Cellar rainwater catchment #First flush bucket|Old Growth Cellar]] <br> 15 gallon first flush tank with side drilled. | |||
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. | |||
File:FBDsystem.jpg|[[WaterPod FBD Rainwater Purification #Description of Final Project|Waterpod Rainwater Filtering]] <br> See 2) Ball Valve 3) First Flush | |||
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. | |||
File:Diseno1.JPG|[[HSU_Chiapas_rainwater_catchment#Juan_Hidalgo.27s_demonstration_house|HSU Chiapas Rainwater]] <br>Old design that leaked replaced by next image. | |||
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. | |||
File:IMG_0024.JPG|[[CCAT_rainwater_catchment_system#First_Flush_Catchment_System|CCAT Rainwater]]<br>First flush with clear pipe. | |||
</gallery> | |||
==Links== | |||
*[[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 | ||
[[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
- Original:Rainwater_harvesting#First flush systems
- Old Growth Cellar rainwater catchment #First flush bucket
- Original:Ersson rainwater harvest and purification #Roofwashers
- WaterPod FBD Rainwater Purification #Description of Final Project
- Daycare rainwater catchment system#The First Flush Sediment Trap
Examples of a redesigned first flush
- Various First Flush Systems
-
Practical Action Rainwater Harvesting
a) the tipping gutter first flush system and b) the floating ball first flush system. -
Old Growth Cellar
15 gallon first flush tank with side drilled. -
Ersson's roofwasher
a hollow ball which, when filled by the initial flow of water, seats itself onto a rubber gasket. -
Waterpod Rainwater Filtering
See 2) Ball Valve 3) First Flush -
Parras Mexico Daycare Rainwater
The first flush is caught by 4" pipe with a floating ball. -
HSU Chiapas Rainwater
Old design that leaked replaced by next image. -
HSU Chiapas Rainwater
New design that use two parallel lengths of pipe. -
CCAT Rainwater
First flush with clear pipe.
Links
- First Flush Calculations
- Saferain - Alternative to the Roof Washer