A basic understanding of cooling water treatment fundamentals, treatment strategies and key performance metrics is necessary for designing and operating cooling towers. This presentation provides an overview of water treatment for asset protection for cooling systems and why it's necessary. A brief outline of what tools are available to use by design engineers and owners will be provided, along with key performance metrics that can be incorporated into commissioning documents and operating manuals. Attendees will walk away with an understanding of fundamental aspects of water treatment and what should be expected of a good water treatment program.