Service Deionization (SDI) Systems, Water purification through service deionization.

  • Unlike permanent-bed deionizers, Service Deionization requires no system installation, chemical handling, waste neutralization or maintenance by you
  • We work with you to determine what system configuration best suits your current and future needs
  • With the largest local service network in the industry, we guarantee fast, first-rate service wherever and whenever you need it
  • 24/7 toll-free customer service hotline to ensure rapid response from our experienced, nationwide team of technical support professionals
  • Wide variety of accessories and spare parts for ours and competitor systems, for which we maintain the industry’s largest inventories of, so you can always get the parts you need quickly

Evoqua Service Deionization (SDI) is a safe, convenient, and cost-effective supply of high-purity deionized (DI) water for a wide variety of applications, including boiler feedwater, laboratory water, ingredient water for pharmaceuticals, food and beverages, industrial processes, microelectronics manufacturing, and more — even spot-free rinse water for car washes.

With Evoqua SDI, there’s no capital expenditure on costly regeneration equipment and chemicals. Evoqua replaces and regenerates your ion exchange resin tanks off-site whenever they become exhausted. With Evoqua’s proven technology, exceptional customer support and nationwide network of service branches, all you have to do for a dependable supply of high-purity deionized water is turn on the tap.


You can depend on our service professionals for:

  • Emergency Service
  • Preventive Maintenance
  • Back-up Systems
  • Field Engineering and Evaluation
  • System Installations and
  • Upgrades
  • Water Sampling and Analysis
  • Mobile Water Treatment
  • Turn-key Projects
  • Resin Regeneration
  • Membrane Cleaning and
  • Regeneration
  • Membrane Replacement
  • Loop Piping Sanitization
  • Custom Resin Processing
  • Troubleshooting
Contact Us

2233 Watt Ave., Suite 296
Sacramento, CA 95825


(800) 683-4923