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Roland Duelli Plant manager sewage plant Kressbronn-Langenargen, Germany

"When I became plant manager within the sewage plant Kressbronn-Langenargen in 1979, I still had no idea what a sewage plant was about. At that time, I was confronted with modern measuring technology for the first time in my life. In December, the decision came up to work with the company Dr. Lange. One reason for this decision was the safe contact with chemicals and a good acceptance of measuring values. In addition, the field representatives cared intensively about us. I would like to add that our sewage plant was one of the first plants in this region to apply these lab measuring techniques. As the years passed, the range of cuvette tests became more extensive and more precise. Therefore, we changed a 100% to cuvette tests in the 90s. The demand for a more efficient photometer could be fulfilled by the CADAS. We were supplied with test devices. I would like to thank all field representatives for their great work. We have high purification demands in the Lake Constance area. Therefore, we started to use increasingly MRS technology over the last few years within the single cleansing steps. I have to add that we are completely satisfied with this technology. " Remarks HACH LANGE: the author of this small article is a foundation member of the Dr. Lange customer advisory board and is in charge, together with other board members, to consult in the development of new products and company methods the the German union for water economy, sewage and rubbish (DWA) honoured in 2007 Roland Duelli with a golden needle for his work"

Dr.-Ing. G. Seibert-Erling Consultant engineer

"HACH LANGE has enriched the water and sewage market with many innovative products during their 75 year history. However it has to be pointed out that a good product is not sufficient for the success of a company. HACH LANGE does not only sell products, but shows engagement, a pioneer's mind and customer proximity in order to find practical solutions and open the market for new measuring and regulatory ideas. A broad range of seminars form the platform for the exchange of experiences, which distinguish by a diverse and up-to-date theme offer, and therefore attract many customers. "