Besco Water Treatment is one of the oldest and largest companies specializing in design, installation and maintenance of residential, commercial and industrial water processing systems. The company, established more than 30 years ago, has offices in Battle Creek, Grand Rapids and Lansing, Mich. Bescos water treatment systems include deionization, filtration, softening, reverse osmosis, dealkalization, ultrafiltration, carbon adsorption, D.I. exchange tank rentals, degasification, chemical treatment programs, pilot plants and bulk D.I. water delivery. The company s systems specialists handle various aspects of water treatment projects, including water analysis, system requirements, sizing, installation and follow up. Besco s bottling facilities in Michigan are approved by the National Sanitation Foundation International.