Chlorine has been used for large-scale disinfection of public water supplies for more than a century. A skilled and knowledgeable operator who understands disinfection strategies and the proper use of chlorine is a vital component of meeting the challenge of providing microbiologically safe water while minimizing undesirable by-products. The content in this DVD is also available on AWWA Video Streaming. Trainer subscriptions to video streaming start at $399. Click here for more information and to subscribe.