SERVICE / INSTALLATION TECHNICIAN. Technician needed for service & installation of water treatment equipment. Mechanical ability & some heavy lifting required. Plumbing experience a plus. Call Craig at 815-338-3344. or email resume to. qwc@sbcglobal.net. Quality Water Conditioning in Woodstock. . . . . . About Us. Quality Water Conditioning Inc provides softener treatment and maintenance services in Woodstock, IL. Year Established. 1967. Services...