Process and manufacturing plants usually consume huge amounts of water in various cleaning and rinsing operations. To couple with environmental regulations, the industries have been seeking effective and affordable technologies for wastewater minimization. This paper presents a design methodology for the most effective water use and reuse in rinsing operations. A unique feature of the methodology is to synthesize of a switchable water allocation network (SWAN) based on the dynamics of a rinse system. This permits water reuse to the maximum extent, while rinse qualities in different rinse steps can be guaranteed scientifically. The efficacy of the methodology is demonstrated by tackling an industrial wastewater minimization problem in an electroplating plant.