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First Flush Plus 4"

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  • First Flush Plus 4" (WDDP111)
  • First Flush Plus 4" (WDDP111)
Rain Harvesting by Blue Mountain Co
RRP: $59.95
$49.95 (You save $10.00)
Calculated at checkout

 Product Description

4" First Flush Plus Diverter


Protect your rainwater quality by diverting the most contaminated water that washes off your roof with the first few inches of rainfall using the Rain Harvesting First Flush Plus.


First Flush Plus Tee Resized

Install with ease

Supplied in kit form, the first flush diverter can be installed on your downpipes with a simple T junction. Simply add and install the length of pipe required to meet your diversion needs. This will be based on the volume of dirty, contaminated water you wish to divert.

First Flush On Blue Tank Next To Vege Patch

Improve your water quality

Help prevent hazardous organic and inorganic particles from contaminating your rainwater by diverting and discarding the most particle-laden water from your roof. This first flush diverter captures the first flush of rainfall so you get better quality water in your tanks.

End Cap With Flow Controllers FF

Use your diverted water

The water you divert is automatically released through the slow release valve. You can empty this water into a standard drip irrigation system for use around your garden or you can direct it into storm water drainage. The choice is yours.




1. First Flush Plus Tee

2. Ball Seat

3. End Coupling

4. Pipe Wall Brackets x2

5. Sealing Ball

6. Transparent, Rapid Release, Exit Funnel

7. Flow Control Valves x8

8. Plastic Filter Screen

9. Hose Connector 

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