Profile: Graver Water Systems manufacture equipment and offer services and parts. We are an ISO 9001:2008 certified company. We utilize unit process technologies such as clarification, filtration, reverse osmosis and ion exchange to solve the treatment needs. We design, engineer and manufacture water & wastewater treatment equipment and control systems for utility, industrial, commercial and municipal applications. Condensate polishing is the process of purification of condensate return by ion-exchange and filtration and is an important part of any industrial process or power generating system.