Water Works Association WSO: Pumps DVD Preview By Charles on Monday, March 19, 2018 This operator-training DVD explains the basics of centrifugal pumps, the most common pump used in water systems. For more on this video and to purchase go here: http://www.awwa.org/store/productdetail.aspx?productid=54599057 Previous Post Next Post Related Posts Water Works Association Water Distribution | Pipe material Water Works Association Backflow Prevention & Cross Connection Control: Applications & Installations Water Works Association Water Online Radio Interview with Kristie Anderson – AWWA ACE17