Phosphates
Carus is the leading manufacturer and supplier of phosphate-based corrosion control and sequestration technologies in North America. With over 100 custom blend ratios—including orthophosphates, zinc-orthophosphates, poly-orthophosphates, and polyphosphates—our phosphates are designed to meet a wide range of water quality needs. All products are NSF certified and rigorously tested to meet our QA/QC standards. Our highly experienced support and sales teams work closely with customers to deliver timely, customized solutions that ensure optimal product performance.
Carus phosphates are designed to tackle critical water quality concerns, including corrosion control, lead and copper mitigation, and scale prevention. Our phosphates protect infrastructure, improve water clarity, and ensure compliance with EPA Lead and Copper regulations. By forming a protective film on metal surfaces, Carus phosphates extend the life of water distribution systems, reduce chlorine demand, and enhance flow (C-factors), making them a preferred choice for municipalities.
Applications:
- Corrosion Control: Protects pipes, valves, and household plumbing, preventing red/brown water and maintaining system integrity.
- Lead and Copper Reduction: Mitigates lead and copper release, ensuring safer drinking water.
- Scale Prevention: Reduces scale buildup and cloudy water, improving system efficiency and reducing operational costs.
Carus’s phosphate solutions deliver proven results in safeguarding water infrastructure and ensuring high-quality water for communities.
Our Solutions
Blended Phosphates for Total Water Treatment
Our AQUA MAG®, CALCIQUEST®, CARUS™ 8000, and AQUADENE® blended phosphates provide effective corrosion control and sequestering across various water qualities, managing iron, manganese, and total hardness.
- AQUA MAG® Blended Phosphates
A liquid phosphate concentrate that acts as a corrosion inhibitor and sequestrant in potable and industrial systems. - CALCIQUEST® Liquid Water Treatment Chemical
Provides corrosion inhibition and sequestration, designed for potable and industrial water applications. - CARUS™ 8000 Series
High-purity, liquid concentrate phosphates that offer reliable sequestration and corrosion control. - AQUADENE® Blended Phosphate Series
Engineered to control lead leaching and corrosion in multi-metal systems, specifically formulated for surface water applications.
Orthophosphates for Corrosion Control
CARUS™ 4000 series products form an anodic film on metals to prevent corrosion, ensuring compliance with EPA Lead and Copper rules. Ideal for unlined cast iron, copper, and lead pipes.
- CARUS™ 4000 Series
Orthophosphate products forming an anodic film to protect unlined cast iron, copper, and lead piping systems.
Zinc Orthophosphates for Dual Protection
The Carus™ 3000 series provides both anodic and cathodic protection, forming a robust barrier on metal surfaces to control corrosion in water systems and meet EPA standards.
- CARUS™ 3000 Series
Zinc orthophosphates providing dual-layer protection against corrosion by forming both anodic and cathodic barriers.
Polyphosphates for Metal Sequestration
Carus™ 1000 series polyphosphates effectively sequester iron, manganese, and hardness minerals, preventing discoloration, scaling, and hard water issues.
- CARUS™ 1000 Series
Polyphosphates designed for effective metal and hardness sequestration, preventing scale and discoloration.
Why Carus?
Laboratory Support
Innovation & Technology
FIELD SERVICES
Carus provides comprehensive on-site treatment assistance as part of our technical support. Our services include technical expertise, supervision, testing, and custom feed equipment design and installation to ensure successful applications.
CUSTOMER SUPPORT
For over 100 years, Carus has been dedicated to delivering exceptional customer service and support. Our personalized technical expertise and responsive service helps our clients solve their challenges and achieve their goals. We combine responsible chemistry with a customer-first approach.