The ACO grass grids are filled with a mixture of topsoil and sand/lava (ratio 70/30), for example, and sown with lawn seed.
Water in the substrate so that it is approx. 0.5 cm below the top edge (to protect the turf). After completion and sowing of the lawn seeds, water the area regularly. The lawn should have been cut approx. 3-4 times by the time it is driven over for the first time in order to achieve a continuous green surface.
Care and maintenance: fertilise regularly, water if necessary and mow.