Topic – Sand supply & Amendments. John has worked extensively in the turf industry as a Turfgrass Agronomist for nearly 40 years. He has extensive experience in undertaking research and consultancy with a wide range of clients including golf, major sports stadia, local government and racetracks and has expertise in soils, sports turf profile design, drainage, water management and turfgrass evaluation. John has lectured in soils, drainage, irrigation management, environmental management and construction at several campuses. In addition, he has presented papers at numerous turf conferences and seminars and has written extensively with over 350 published papers and articles. John has undertaken research into: • The performance of playing surfaces as it relates to profile construction and management. • Sand testing as it relates to sports turf profile construction and performance. • Water and irrigation management. • The effects of effluent water on turf and soils. • Turfgrass selection and assessment for sports surfaces.