Portable Exchange Deionization (P.E.D.I.) Systems

High-purity water solutions for industries that demand consistent performance — with no downtime and no chemicals required.

How Deionization Works

Deionization uses a blend of synthetic resins to remove nearly all ionic material from water — achieving resistivity up to 18.3 megohms/cm, the highest level of purity available.
Our portable DI systems use two resin types:

  • Cation resins remove positively charged ions
  • Anion resins remove negatively charged ions
    When these ions combine, they form pure H₂O — producing exceptional low-mineral water for industrial and laboratory use.

99.9% ionic impurity removal

Fast tank exchange service

Zero hazardous chemicals

Guaranteed consistency

Flexible, Hassle-Free Deionization Service

Designed to keep your operation running without interruption.

Leasing & Tank Exchange

Rent high-quality DI tanks and exchange them easily through our local delivery program — no upfront system purchase required.

Rebedding & Regeneration

We rebed and regenerate privately owned tanks, restoring peak resin efficiency and extending system life.

Testing & Support Equipment

From conductivity meters to full testing setups, we supply the tools you need to ensure consistent water quality.

Industries We Serve

Hospitals + Healthcare

Laboratories

Manufacturing

Chemical + Machine Shops

Resources & Technical Downloads

PEDI Tank Sizes

Tank Configuration Options

Water Quality Conversion Chart

Utah’s Trusted DI Water Experts Since 1984

Water Specialties has supported Utah’s leading facilities with custom deionization systems for over 30 years. Our clients trust us for fast response times, dependable results, and unmatched industry experience.

Let’s Keep Your Water System at Peak Performance