First Flush Delta Post/Wall no tee

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Answer a few questions to know which First Flush Diverter is right for you.

A high volume first flush diverter, perfect for whole-of-house and commercial applications. This kit doesn't include the T-piece or reducer, so you can make it fit with your existing design.

Once you've connected it, just add 100mm or 4" pipe to create the chamber and your system is ready to start diverting larger volumes of water.

Divert Large volumes of water, easily

Easily divert large volumes of water with Delta's unique manifold design which only requires you to use smaller diameter pipe.

Ultimate First Flush control

By setting the regularity of your first flush diversion, you can optimise how often your First Flush Diverter drains.

Just add pipe and your T Piece

The First Flush Delta comes with most fittings you need to set the system up. Just add your own tee-piece and pipe to create the storage chamber.

Easy Maintenance

The large opening on the valve reduces the chance of clogging when compared to a traditional slow release valve.

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Benefits

Divert Large volumes of water, easily

Standard large format First Flush Diverters require you to use large diameter pipe (eg, 300mm / 12"). It can be difficult to source in smaller lengths and can be expensive.

The Delta's unique manifold design uses lengths of 100mm or 4" pipe instead, so sourcing the pipe to make the chamber is easier. It means you can assemble your First Flush Diverter quicker, to get the job done.

Each 1 meter of length in the Delta = 73 L diversion.
Each 1 yard of length in the Delta = 17.5 gal diversion.

https://drive.google.com/uc?id=

Benefits

Ultimate First Flush control

By setting the regularity of your first flush diversion, you can optimise how often your First Flush Diverter drains.

Do you want the best quality water possible? Set it to a regular reset interval of three days or less.

Do you need to maximise the volume of water your capture? Increase the reset interval to two weeks or more.

Want to start off with a great compromise of water quality and quantity? Try five days.

https://drive.google.com/uc?id=

Benefits

Less maintenance and clogging

Traditional First Flush Diverter valves have a tendency to clog over time - they only have a tiny hole so it is inevitable. The release valve on the Delta First Flush includes a unique funnel design and a much larger draining hole, which means that water drains as it's supposed to and there is far less chance of the unit becoming clogged.

https://drive.google.com/uc?id=

Benefits

Divert Large volumes of water, easily

Standard large format First Flush Diverters require you to use large diameter pipe (eg, 300mm / 12"). It can be difficult to source in smaller lengths and can be expensive.

The Delta's unique manifold design uses lengths of 100mm or 4" pipe instead, so sourcing the pipe to make the chamber is easier. It means you can assemble your First Flush Diverter quicker, to get the job done.

Each 1 meter of length in the Delta = 73 L diversion.
Each 1 yard of length in the Delta = 17.5 gal diversion.

https://drive.google.com/uc?id=

Benefits

Ultimate First Flush control

By setting the regularity of your first flush diversion, you can optimise how often your First Flush Diverter drains.

Do you want the best quality water possible? Set it to a regular reset interval of three days or less.

Do you need to maximise the volume of water your capture? Increase the reset interval to two weeks or more.

Want to start off with a great compromise of water quality and quantity? Try five days.

https://drive.google.com/uc?id=

Benefits

Less maintenance and clogging

Traditional First Flush Diverter valves have a tendency to clog over time - they only have a tiny hole so it is inevitable. The release valve on the Delta First Flush includes a unique funnel design and a much larger draining hole, which means that water drains as it's supposed to and there is far less chance of the unit becoming clogged.