First Flush w/ Basic Tee
Protect your rainwater quality by diverting the most contaminated water that washes off your roof with the first few millimetres of rainfall with a first flush diverter.
This First Flush Diverter is the original in our range and is a great way to get started with first flush diversion.
Divert contaminated water
It works automatically
Customise it for your needs
Just add pipe
Benefits
Improve your rainwater quality
By diverting and discarding the most contaminated water from your roof, the First Flush Basic helps keep hazardous bacteria and fine particles out of your tank. This improves the quality of the rainwater you collect and is a key step in effective rain harvesting practices.
Benefits
Customise and install with ease
Supplied in a kit with T-junction, ball and drip-drainer included, this first flush diverter can be installed on walls, posts, stands or even under your eaves. Simply add a customised length of pipe to divert your desired volume of dirty, contaminated water from each downpipe.
Benefits
It works automatically
Slow Release valve automatically drains your chamber over time so you are ready for the next rainfall event.
Benefits
Improve your rainwater quality
By diverting and discarding the most contaminated water from your roof, the First Flush Basic helps keep hazardous bacteria and fine particles out of your tank. This improves the quality of the rainwater you collect and is a key step in effective rain harvesting practices.
Benefits
Customise and install with ease
Supplied in a kit with T-junction, ball and drip-drainer included, this first flush diverter can be installed on walls, posts, stands or even under your eaves. Simply add a customised length of pipe to divert your desired volume of dirty, contaminated water from each downpipe.
Benefits
It works automatically
Slow Release valve automatically drains your chamber over time so you are ready for the next rainfall event.
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.