- Reverse Osmosis West Des Moines (515) 224-2129 http://www.redaxiom.com/story.php?title=reverse-osmosis-west-des-moines-515-224-2129 The Water Softener West Des Moines technicians offer a variety of water conditioning products including reverse osmosis, water filter systems and home water softeners. They offer free water assessments and consultations for residents and business owners in the area. Thu, 20 Apr 2017 06:02:25 PDT en