First Flush Post/Wall w/ 300mm Chamber
A high volume first flush diverter, designed specifically for inground applications. Divert the dirtiest water and transform your Rain Harvesting system from “wet” to “dry” with this large volume inground first flush diverter.
This design uses large diameter, 300mm pipe to create the First Flush Diversion chamber - it's a straight forward design that's been trusted for years.
Divert contaminated water
It works automatically
Divert Large volumes of water, easily
Just add pipe
Benefits
Keep the dirtiest water out
By capturing and discarding the dirtiest, most contaminated water from your roof, this first flush diverter reduces the load on your pumps and filters and helps keep hazardous organic and inorganic matter out of your tank so your water remains fit-for-purpose.
Benefits
Install with ease
This versatile first flush diverter unit can manage water from single or multiple pipes. Wall, post and stand mounting options plus an all-parts-included kit mean installation couldn’t be easier. Simply add an appropriate length of pipe to divert as much as 150 litres as required.
Benefits
Divert large volumes of water, easily
By using large diameter 300mm pipe to create the first flush diversion chamber, you are able to diverter move water, while using less space.
Each meter of length in the diversion chamber will yield 72L diversion. We can help you calculate your first flush diversion needs using our online tool here.
Benefits
Keep the dirtiest water out
By capturing and discarding the dirtiest, most contaminated water from your roof, this first flush diverter reduces the load on your pumps and filters and helps keep hazardous organic and inorganic matter out of your tank so your water remains fit-for-purpose.
Benefits
Install with ease
This versatile first flush diverter unit can manage water from single or multiple pipes. Wall, post and stand mounting options plus an all-parts-included kit mean installation couldn’t be easier. Simply add an appropriate length of pipe to divert as much as 150 litres as required.
Benefits
Divert large volumes of water, easily
By using large diameter 300mm pipe to create the first flush diversion chamber, you are able to diverter move water, while using less space.
Each meter of length in the diversion chamber will yield 72L diversion. We can help you calculate your first flush diversion needs using our online tool here.
Product Installation, Maintenance and Information
Specifications
All measurements are in mm unless specified otherwise
Click the drawing to view it in full size
Pipe Fitment
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First Flush Calculator
Easily calculate how much water you need to divert and discover which First Flush Diverter is right for you.
Design Service
Improve your existing Rain Harvesting system or design a new one with the help of our experts and our free system design service.
Rain Harvesting Handbook
A guide that will provide you with help and inspiration to start your rainwater harvesting journey today.
Design Service
Improve your existing Rain Harvesting system or design a new one with the help of our experts and our free system design service.