Water Softeners and Drinking Water Systems that have the Water Quality Associations Gold Seal of Approval. Mountain View Pure Water is proud to be the authorized Hague Quality Water dealer in Johnson City and its surrounding areas. Since 1960, Hague Quality Water has been manufacturing the most reliable and efficient water treatment systems in the USA. We are water treatment specialists, experienced, knowledgeable and eager to offer expert installation and service. Dont settle for less than Hague! Contact us & Schedule a FREE In-Home Water Test Today!