20" sorrel roller aerator cartridgeIts important to use a Sorrel Roller on your pitches semi regularly to allow aeration of the pitch. The Sorrel Roller causes minimum disturbance to the soil for aeration purposes, with round hole penetration rather than a slot. This is ideally carried out before fertilising as this allows a better route to the soil. The multi tooth drum will penetrate the surface of the pitch so that surface compaction is relieved an important process, as this allows