This paper will provide an extensive description of membrane technology; demonstrate how the technology is applied and how it affects chemical costs and reduces bath dump frequency; cover the reduction in energy costs (purified bath recovery via permeate reduces heat requirement to effect the same cleaning); give examples of reduction in cleaner bath maintenance; cover the point source reduction of wastewater volume by recovery of the bath; address the critical steps in applying crossflow ultrafiltration to your facility; introduce the recovery of extreme pH solutions or solvent based cleaners via nanofiltration.