Positioning in trench with independent positioning system which significantly simplifies the installation process. This 25 metre section of drain was positioned in four man hours including digging the trench.

Polystyrene insert to assist screeing and prevent wet concrete ingress into channel

Concrete poured on one side of THUNDAFLO with poly insert. Note: A portion of the poly has been removed for example.

Finished: Smooth as a whistle...

Finished: Smooth as another whistle...

As clean as a third whistle