Quantify and compare the amount of water used and lost (deep drainage) in; field in four siphon-less irrigation systems and corresponding furrow irrigated fields. Quantify and compare development costs, labour savings and yields of the four systems and corresponding furrow irrigated fields. Determine and promote the most water use efficient siphon-less irrigation system. Determine grower motivation for adopting one siphon-less irrigation method over another. Educate irrigators and stakeholders on and promote the adoption of water use efficient irrigation systems, deep drainage and any salinity management issues.