Normally we would be venting with our deep tine aerifiers right now, but with the dry weather, upcoming heat and the US Am only 3 weeks away, we decided to use the hydroject. This machines injects water to make a small hole to allow the greens to breathe. Once done, we will blow off any excess sand and you would not know we did the greens. If we were to make the normal 5/16" hole, we would be chasing wilt during the day as the greens would dry out too fast. You have to be flexible with your programs based on weather conditions, time of year and events. A deep tine vent would be done in about 4.5 hours with 2 machines and this will take 8-12 hours with 2 machines.