When turf compaction caused by foot or vehicle traffic, sporting events or other stresses is a problem, periodic aeration is necessary to keep the turf healthy. The Ventrac AERA-vator is designed to stir and loosen the soil beneath the sod without destroying the turf. The EA600 creates a core hole without bringing a core plug to the surface, leaving the turf ready for use immediately after treatment. Ninety seven holes are created each square metre, and hole size is regulated by drive speed-- the slower the drive speed, the larger the hole. The AERA-vator works best in dry un-irrigated ground leaving a core hole while fracturing the sub soil.