Product Guide Cooling Tower Water Treatment Behind the recommendations Related articles Behind the recommendations Related articles Cooling Tower Water Treatment Water treatment systems often rely on harsh chemicals to treat bacteria, and on high water use from drawdown of water to reduce build-up of concentrates—a process called blowdown. More about Cooling Tower Water Treatment Non-Chemical Water Treatment for Cooling Towers Net-Zero Water and More: Moving Beyond “Low Flow” These emerging water strategies are finding momentum and filling the need to address efficiency and resilience on multiple scales.