Positioning Sections

Dig Trench to fit THUNDAFLO dimensions taking into account the buiit-in-fall C 100 F&Z: A minimum of 100mm of concrete reinforcing required alongside & below channel C 170 F&Z: A minimum of 150mm of concrete reinforcing required alongside & below channel

Position Sections in trench in correct "built-in-fall" order

Raise the "top end" of the channel and position using the independent positioning system (IPS) Note: Position drain with the "bottom" torsion spring at this stage to enable final adjustment.

Hammer in remaining poles and secure with "bottom" torsion spring.

Lift in the next 6 metre THUNDAFLO section.

Insert overlapping channel of the new section into "positioned" section.

Push sections together.

Hammer in poles and repeat process all sections are connected.

Concrete pour Note: There is no need for the concrete edge to be above the edge of the frame as required for the one metre poly-modular alternatives