Oxygen may be the most important nutrient in all of turf management. If there is too much water in the soil, oxygen will not be present, and few plants can survive. In 1984 Dennis Hurley founded Turf Drainage Company of America. By using a few patented products, he started helping golf courses move unwanted water off of playing surfaces. Today Dennis, along with his National Account Manager, Zach Boudreaux, are fixing drainage problems with their Turf Drain system. They discuss how water moves across a water shed and how it can best be moved away from turf surfaces. By applying the principles of hydrodynamics, water can be redirected away from sensitive areas of the golf course allowing the superintendent to avoid the problems of anaerobic soils. Dennis discusses some of their tools that they run through drainage lines that work to move water away. He also covers some basic principles of how to lay out a drainage strategy on any golf course.