This course is designed to provide a microbiology-focused education about all aspects of water systems and how biofilm manages to thrive there. Prior microbiological education or training, though a plus, is not a requirement because engineers and other non-biologists also need this training if they are involved with any aspect of water systems. The instructor will provide the necessary background needed to understand this very important subject matter. This understanding is essential to the proper design, validation, operation, monitoring, maintenance, troubleshooting, and excursion investigations of a high purity water system. Without this understanding, water system control consists of a set of rules that often don't work and can cause very costly system downtime or even product recalls, and leaves the user without a clue as to what went wrong or how to effectively fix it so it doesn't recur.