Resources

Buy Local Permanganate (CAIROX / CARUSOL)

Over the past century, working from its original home in La Salle, IL, Carus Corporation has developed a reputation for being the industry leader in quality and customer service while becoming one of the largest permanganate producers in the world.

Through collaboration with water industry professionals and our internal staff, Carus has developed innovative product grades and oxidation treatment techniques to assist our customers in achieving water quality goals.

Buy Local Permanganate (RemOx)

Over the past century, working from its original home in LaSalle, IL, Carus Corporation has developed a reputation for being the industry leader in quality and customer service while becoming one of the largest permanganate producers in the world.

Through collaboration with remediation industry professionals and our internal staff, Carus has developed innovative products and oxidation treatment techniques to assist our customers in achieving remedial goals.

Improve Water Quality & Protect Your System with AQUA MAG

Improve Water Quality & Protect Your System with AQUA MAG

Municipal water systems face constant challenges—discoloration, mineral buildup, corrosion, and biofilm formation can all compromise water quality and infrastructure longevity. AQUA MAG blended phosphate offers a proven solution, helping utilities sequester minerals, control scale and corrosion, enhance disinfection, and reduce operational costs.

Discover 10 key ways AQUA MAG improves municipal drinking water in our exclusive technical brief. Download now to learn how this powerful phosphate blend can help you extend system life, reduce maintenance, and enhance water quality.

Struggling with Discolored Water & High Chlorine Demand?

Struggling with Discolored Water & High Chlorine Demand?

A municipal water system was battling heavy tuberculation buildup, leading to restricted flow, excessive chlorine demand, and frequent consumer complaints about dirty (red) water. Additionally, calcification in rapid sand filters was causing operational inefficiencies and increased maintenance.

By implementing AQUA MAG® blended phosphate, the utility saw dramatic improvements—including a 37% reduction in chlorine demand, lower energy costs, and a significant decrease in filter backwash frequency.

Download the case study now to learn how it worked—and how it could benefit your water treatment process.

Corrosion Threatening Your Water System? Here’s What You Need to Know

Corrosion is an unavoidable natural process, but when left unchecked, it can lead to serious damage in water systems—causing red water complaints, pinhole leaks, scale buildup, and even costly infrastructure failures. Whether it’s uniform corrosion thinning metal surfaces or pitting corrosion compromising pipes and tanks, every water system is at risk.

But corrosion control is possible. The right blended phosphate solution can help reduce lead leaching, extend system life, and improve water quality—but not all phosphate blends are the same.

Want to know how AQUADENE blended phosphate works to protect multi-metal systems and provide long-lasting corrosion control? Download the full report to learn more.

Corrosion Threatening Your Water System? Here’s What You Need to Know

The Key to Effective Water Treatment: Understanding Blended Phosphates

The most successful water treatment programs today rely on blended poly/orthophosphates to control corrosion, scale, iron, and manganese, making them essential for municipal water systems. But not all phosphate blends are created equal. Choosing the right formulation is critical to ensuring water quality, system longevity, and public safety.

What makes AQUADENE blended phosphate products different? How do they work at the molecular level to prevent scale buildup, reduce corrosion, and improve overall system performance?

Download the full technical brief to explore the science behind blended phosphates and learn how the right formulation can make all the difference in your water treatment strategy.

Phenol Problem Solved at Wastewater Facility

An industrial user of phenolic resins and organic dyes that processes approximately 40,000 gallons of wastewater per day. The phenol concentrations can be as high as 7,000 mg/L. The phenol levels must be reduced to <50 mg/L prior to discharge.

The facility operates 24 hours per day and seven days per week processing a tremendous amount of phenolic resins. The high resin usage requires the facility to clean phenolic resin containers daily for reuse.

Sulfide and Corrosion Control

Kootenai-Ponderay Sewar District located near Sandpoint, Idaho, was trying to control hydrogen sulfide corrosion and odor at two lift stations and several manholes. The source of the problems was from a pressure sewer line that was being discharged into a gravity line below a manhole. The pressure sewer line consists of discharge from a STEP System (septic tank effluent pump). It was determined that the best point for applying odor control chemical was at the injection station located over a valve box of the pressure line.

Solutions for the Mining Industry

Carus specializes in solutions for the mining industry. Carus is a world leader in the production of high quality CAIROX® potassium permanganate and CARUSOL® liquid permanganate oxidants for contaminant removal as well as a line of CARUSQUEST® scale inhibitors. In addition, we offer a full line of POLYPRO coagulants and flocculants, polymer feed equipment, permanganate feed equipment, and CARUTEST® permanganate analyzers.

Blended Phosphate Solves Lead Issue More Effectively than Phosphoric Acid

A city located in the United States was investigating high lead levels in their system with lead levels of 17 ppb which is over the U.S. EPA (United States Environmental Protection Agency) action level of 15 ppb. During the investigation, the city also changed their coagulant from ferric sulfate to poly-aluminum chloride to reduce the iron fouling on their membrane system. This switch caused the lead levels to spike in their system to a high of 27 ppb but did eliminate the iron fouling on their membrane system which reduced their down time and chemicals required to clean the membranes.

Treatment Solves Corrosion Issue

A city located in the midwest (United States) exceeded the lead compliance rule of greater than 15 ppb. There was discoloration on primarily plumbing fixtures, and long hydrant flushing times greater than 30 minutes, resulting in USEPA mandated monitoring of lead and quarterly testing of lead dissolution throughout the distribution system.

The city was using three wells located in confined deep aquifers and treating an average of approximately 4000 m3/day (1.1 MGD) to over 2000 connections or a population of 7500.

Blended Phosphate Solves Lead Issue

A city located in the United States had lead levels of 50 ppb at some homes in the distribution system and lead levels of 23 ppb which is over the action level of 15 ppb recommended for human consumption by the U.S. EPA (United States Environmental Protection Agency). Based on the high number of lead service lines in the distribution system, the city was looking for a way to effectively reduce the lead levels throughout the distribution system.