Home > Crops & Livestock > Crops > Irrigation > Irrigation Flow Measurement [Image: Recording flow] Measuring irrigation flow helps irrigators better manage and schedule irrigation. Measuring flow also is a tool for estimating irrigation water use. This publication will help irrigators learn to select, install and use propeller and ultrasonic flow meters as well as estimate flow without the aid of flow meters. Interpreting Irrigation Water Quality Reports [Image: water drop] Irrigation water tests should be done when the irrigation system is installed and with some frequency, depending on the outcome of the initial test, location (are you near the coast?) and the potential for fluctuations in water-source quality. Paper prepared by: Dara M Park, L. B. McCarty and Sarah A. White of Clemson University. Irrigation Pumping Plant Efficiency Testing [Image: Operational cost per acre-inch] A pumping system’s efficiency is calculated by comparing the amount of fuel used to the amount of water pumped. Subsurface Drip Irrigation in the Southeast [Image: SDI Setup] This fact sheet is designed to provide a brief introduction to the site selection, design, installation and management of subsurface drip irrigation (SDI) in humid and sub-humid areas. This overview is not intended to give all the information necessary for a complete and functional system. The reader is referred to more comprehensive documents for greater details in each category.