
Closed Loop Water Treatment
Closed loop systems, while not exposed to constant make-up water, are highly vulnerable to corrosion, microbiological growth, and fluid degradation over time. Our treatment programs are designed to stabilize system water chemistry, protect metal surfaces, and maintain proper inhibitor levels throughout the loop. We implement corrosion inhibitors, biocides (when required), and filtration strategies to maintain clean, balanced water. Regular testing and adjustments ensure long-term system integrity, improved heat transfer, and reduced maintenance issues across chillers, heat exchangers, and piping networks.
Liquid Chemical Closed Loop Treatment Systems
(Traditional Approach)
Liquid chemical feed systems are the most commonly utilized method for treating closed loop systems. These programs typically include corrosion inhibitors, dispersants, and—when required—biocides, all stored in liquid form and introduced into the system through metering pumps and controlled injection points.
Because closed loop systems are generally low-loss environments, maintaining proper chemical residuals is critical for long-term protection. Liquid feed systems allow for controlled dosing and adjustment based on system volume, water quality, and operational conditions. These systems are often paired with routine testing and manual or automated feed adjustments to ensure inhibitor levels remain within target ranges.
Total Services Group designs and services liquid closed loop treatment programs tailored to each system’s metallurgy, operating temperature, and fluid conditions. When properly maintained, these systems provide reliable protection against corrosion, scaling, and fouling, helping preserve system integrity and performance over time.


Dry Feed Chemical Closed Loop Treatment Systems (Modern Approach)
Dry feed chemical systems offer a more modern and streamlined approach to closed loop treatment by utilizing concentrated dry chemistry that is introduced into the system in controlled amounts without the need for liquid storage. These systems are designed to deliver corrosion inhibitors, dispersants, and supplemental treatment chemistry in a consistent and controlled manner.
In closed loop applications, dry feed systems are often configured to maintain steady chemical concentrations over time with minimal operator involvement. By eliminating bulk liquid handling, these systems reduce maintenance requirements, simplify system layout, and provide a more compact installation footprint.
Total Services Group engineers dry feed closed loop treatment systems based on system size, materials of construction, and operational goals. These systems represent an updated approach to maintaining closed loop water quality, offering consistent treatment delivery and simplified operation while ensuring long-term protection of piping, heat exchangers, and associated equipment.