This machine injects high pressure air into the rootzone, about 8" deep. The air blast fractures the compacted sand, allowing oxygen in the root zone. I created a template using a piece of lattice in order to keep the operator making holes on 18" centers. We are focused on walk on areas of greens that receive a lot of foot traffic. For example, #16 green and #2 green are both greens with concentrated foot traffic. This piece of equipment is run from an air compressor that is hooked up to a generator.