FILL THE CELLS
Infill fractured or pea gravel into the hexagon cells by hand, or directly from a truck or bobcat. Trucks and bobcats should be careful to avoid sharp turns on unfilled panels.
Preferably the truck should dump gravel first on the edge of the installation area, then work inward, thereby only driving on filled cells. Gravel can be spread by hand with flat shovels, rakes, blades, or stiff brooms.