Step 1: Excavate tree pit, install a sub-drain and prepare base material as specified.
Step 2: Layout Cupolex Rialto bases and attach each base together with snaps provided creating a grid pattern.
Step 3: Install Cupolex Rialto tubes on to each base.
Step 4: Install Cupolex Rialto soil braces and soil caps on top of tubes.
Step 5: Place geogrid around perimeter of Cupolex soil cells and tie the geogrid with zip ties around each tube securing the bottom, middle and top of the geogrid to the system (Geogrid to be min 300mm above Cupolex dome). Add planting soil as specified and lightly tamp.
Step 6: Add 450mm of filter fabric to the top of the geogrid with zip ties. Ensure 50mm to 150mm of filter fabric is below the top of the tube. Back fill collar as specified.
Step 7: Remove soil caps (only after soil has been placed)
Step 8: Install Cupolex domes and flat stops to close the system.
Step 9: Once all back fill has been placed and compacted (base material should not be above the top of the tube). Cut the geogrid and filter fabric on all four corners to the top of the tube fold away from system. Fasten geogrid and filter fabric to the ground with landscape staples min 150mm.
Step 10: Install form work around tree pit and Cupolex system, install welded wire mesh and rebar as specified.
Step 11: Pour concrete and vibrate concrete in every tube.
Step 12: Install tree, tree grate and unit paving as specified