EVAPCO marketing engineers, Brett Alexander, Troy Reinick and Mihir Kalyani, provided young professionals from the Association of Water Technologies a better understanding of the difference between open cooling towers, closed circuit coolers, evaporative condensers, hybrid systems, adiabatic coolers and dry coolers during a webinar last week. The session discussed how equipment design and materials of construction might impact the selection and implementation of water treatment programs. The webinar also provided information related to commissioning new systems and surveying existing ones