Culligan Water Systems Boiler Water Treatment programs are designed to minimize a facility’s steam systems Total Cost of Ownership. Proper treatment inhibits corrosion and scaling on heat transfer surfaces reduces equipment downtime, as well as lessens the impact of water and fuel costs.

Culligan Water Systems has over a half century of industrial experience to provide a wide range of expert chemical solutions for every step in the steam generating process:

  • Make-Up Water Treatment
  • Feedwater Treatment
  • Internal Boiler Treatment
  • Steam/Condensate Treatment

Culligan Water Systems delivers value in line with customer’s needs. As an OEM of water conditioning systems (Softeners, Reverse Osmosis, Deionized Water Generation) coupled with control equipment solutions, hands-free chemical delivery, and value added resources, Culligan experts have the capability to make an impact on a plant’s operational benchmarks.


  • Good Quality Steam
  • Maximize Heat Transfer Efficiencies
  • Reduction in Operational Costs

Internal Chemical Treatment

Internal treatment of the boiler with chemical is essential to inhibit scaling and corrosion which degrade the boilers efficiency. This can be accomplished through a diverse set of chemicals. Depending on the system’s requirements, Polymers, Tannins, and Chelates are typically utilized as internal chemical treatment solutions

Pretreatment: Chemical Solutions

Chemical pretreatment of the feedwater typically takes place in the Feedwater Tank or Deaerator. This process is necessary to chemically remove oxygen and supplement any alkalinity required for quality boiler water. This step generally requires an oxygen scavenger and an alkalinity adjunct to ensure the feedwater is of good quality to reduce the potential for a multitude of corrosion possibilities.

Pretreatment: Mechanical Solutions

The first step, and arguably the most important step to achieving excellent results, is pretreating the make-up water to remove dissolved solids in the make-up water source by mechanical operation. Solutions typically range from utilizing Water Softening to Reverse Osmosis. The proper solution depends on the efficacy of the system and the quality of the incoming make-up water source.

Steam and Condensate Treatment

To protect the system piping network and capital equipment, a steam and condensate chemical is added to buffer the pH. These chemicals are most commonly a blend of neutralizing amines and filming amines which facilitate a buffered pH (pH of 7.5-9). Buffering the pH reduces the potential for the formation of carbonic acid, which is the main contributor of a system’s deterioration.

Steam System Analysis Services

These value-added services ensure the utmost steam system efficiency. The resulting information can be utilized to identify capital equipment operation, cost savings opportunities, as well as facilitating the plant’s understanding of their steam system.

Steam Mechanical Troubleshooting identifies the correct operation of steam equipment.that is essential to support plant processes. Culligan can help troubleshoot the issue for solution development.

The Steam Trap Analysis determines whether the proper type, size, and function of a system’s steam traps is being applied. Faulty steam traps waste energy which increases the operational cost of the steam system.

Conducting the Annual Boiler Inspection allows Culligan to evaluate the overall operational effectiveness of the Boiler System’s Chemical Treatment Program.

The Softener Inspection can be accomplished any time of the year; however, it is best to inspect the system in conjunction with the Annual Boiler Inspection. Culligan can conduct an elution study as well as inspect the aspects of the softener for correct function.


From membrane reverse osmosis to deionization and commercial water softening, and from design to installation, Culligan's fast-to-market solutions feature revolutionary designs for commercial water treatment that are completely customizable to your business needs.


Utilize Culligan’s chemical water treatment programs to prevent corrosion, deposition, and microbiological growth in your Cooling and Heating Systems. Protect your cooling towers and chillers, steam boilers and steam lines, closed loops and equipment, all while minimizing water and energy consumption, facilities costs, and downtime.

Other Applications

Culligan offers a variety of solutions for any water conditioning challenge including waste water applications, acid cleaning, and water reclamation.