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Nathan Olszak

  With over 30 years of hands-on experience in the water treatment industry, Nathan Olszak is a trusted water treatment expert. He specializes in designing, engineering, and servicing water treatment systems. As the owner of Complete Water Solutions, Osmonics, and Membrane Cleaning Pro, Nathan has built a reputation for delivering customized water treatment solutions that enhance efficiency, reliability, and water quality across various industries, including the medical, commercial, and manufacturing sectors. Nathan’s journey in water treatment began as a service technician. He gained in-depth knowledge by working with all major brands of equipment, including Veolia, Suez, Bruner, Culligan, Pentair, Aquamatic, Osmonics, GE Water, Marlo, Lakeside, Fleck, Autotrol, US Filter, ION Pure, Siemens, Evoqua, and many others. This hands-on expertise, combined with his technical certifications, has made him a leader in water system engineering and water management.

Credentials & Expertise

  • Certifications: David H. Paul Reverse Osmosis Certification, PLC Programming
  • License: Power Plant Operating Engineer 3rd Class
  • Specialties:
  • Design & engineering of water treatment systems and advanced water systems
  • Custom water filtration systems and solutions
  • Installation, automation, and repair of water treatment systems
  • Expertise in Reverse Osmosis (RO), Deionization, Water Softening, Carbon Filtration, Iron Filtration, UV Treatment, Ultrafiltration (UF), Process Filtration, CEDI/EDI, and more
  • Specialized knowledge in Boiler Feed Water, Tower Makeup Water, and drinking water production for industries such as bottling, pharmaceuticals, and food processing
  • Project management and reclaiming of water system waste for other uses
  • Evaluation of raw water sources and potential contamination risks
  • Industrial water treatment strategies to prevent corrosion and optimize system performance
  • Boiler water treatment to enhance energy efficiency and system longevity
Nathan’s commitment to excellence extends beyond equipment sales and service. He works closely with clients to develop tailored water treatment services that optimize performance and meet their operations' unique demands. His expertise covers methods that mitigate water impurities, ensure fresh water accessibility, and maintain regulatory compliance. It also includes the design of high-efficiency reverse osmosis systems for industrial use. Nathan focuses on the latest technology in water conditioning, water softeners, filters, and pumps to improve maintenance and efficiency. His experience in laboratory testing and biofilm control ensures the highest industry standards in water treatment processes and water management.  Additionally, his deep understanding of infrastructure and water data analysis provides long-term, cost-effective solutions that promote health and safety. His expertise ensures that businesses receive top-tier, quality water treatment solutions. For insights into the latest industry trends, innovations, and best practices, explore the Complete Water Solutions Blog, where Nathan shares valuable information on water filtration systems, sustainability, and water solutions engineering.   Give Us A Call (855) 787-4200 or Email info@complete-water.com

What Types of Industrial Water Filters are Available

April 7, 2025 · By Nathan Olszak
With the ever-growing population, water is something that is crucial to maintaining life. Due to the population increase, the demand for water has increased meaning having and maintaining high-quality water levels have become more necessary. Water quality is becoming more and more important in industry, firstly due to international standards for the production of equipment [...]
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what is membrane fouling, membrane fouling prevention, how to prevent membrane fouling

What is Membrane Fouling and How Can You Prevent It

March 3, 2025 · By Nathan Olszak
If you work in manufacturing, you’ve probably heard about membrane technology. It’s a growing industry as it can help you boost quality and cut down on manufacturing costs. Membrane technology is revolutionizing manufacturing by improving water filtration and cutting costs. With the global market projected to grow at a CAGR of 6.5%, from $7.38 billion [...]
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common contaminants in industrial water, industrial water system contaminants, contaminants found in industrial water systems

Contaminants Found in Industrial Water Systems & How to Remove Them

February 3, 2025 · By Nathan Olszak
Common Contaminants Found in Industrial Water Systems and How to Remove Them The water we use in every industry must be clean. Using dirty, contaminated water can lead to health complications or unsafe work environments. Within almost all industries, it is easy for water to get contaminated, and finding solutions to treat them should be [...]
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Advantages of UV Water Treatment in Industrial Settings

January 6, 2025 · By Nathan Olszak
Clean and safe water is essential for keeping industrial operations running smoothly. Whether it’s protecting equipment, ensuring product quality, or meeting strict regulations, reliable water treatment is a must. That’s where UV water treatment comes in! What is UV Water Treatment? UV water treatment is the process of water disinfection that uses UV light to [...]
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Extend the Lifespan of Your Industrial RO System

December 2, 2024 · By Nathan Olszak
Did you know that improper maintenance and irregular care can cut the lifespan of an industrial RO system in half? The RO system is the heart of water treatment processes, so it’s important to make sure it's able to maintain water quality properly. Over time, this equipment will be prone to wear and tear, so [...]
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cleaning industrial ro system, industrial ro, ro cleaning

Why Does My Industrial RO System Need to be Cleaned?

November 1, 2024 · By Nathan Olszak
A Reverse Osmosis (RO) system is your company’s lifeline for having clean, filtered water for the purpose of supplying manufacturing efforts, being used as an ingredient, and human consumption. Industrial water treatment is essential for your business and properly maintaining your water treatment system is crucial for ensuring longevity, efficiency, and high-quality water production. If [...]
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Welcome Melissa To The Team At Complete Water Solutions

October 1, 2024 · By Nathan Olszak
Complete Water Solutions is excited to announce that Melissa has joined the Team Help us in welcoming Melissa to the Complete Water Solutions team! Melissa has brought her Digital Marketing Skills To Complete Water Solutions and is making an impact to help our customers find what they need. We are excited to have Melissa as [...]
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Choosing the Right Industrial Water Treatment Solution For You

October 1, 2024 · By Nathan Olszak
Industrial water treatment, for any industry, is a necessary topic of concern and can have a largely positive impact on your business. There are many benefits to consider when looking into the possibility of finding a solution to your water treatment needs. So if you’re not sure where to begin, we are here to help [...]
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Complete Water Solutions Rockstar Award Recipient Patrick

September 29, 2024 · By Nathan Olszak
At Complete Water Solutions one of our core values is   We Work Hard & Reward Hard Work – We will celebrate the hard work of individuals and teams.   We would like to recognize Patrick for earning the Rockstar Award. Patrick has gone above and beyond to help our customers with their water treatment needs. [...]
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cleaning and disinfecting your industrial RO system, disinfect RO system, clean RO System

Difference Between Cleaning & Disinfecting Industrial RO System

September 1, 2024 · By Nathan Olszak
Proper maintenance of an industrial reverse osmosis (RO) system is crucial for ensuring its longevity, efficiency, and the production of high-quality water. Two essential maintenance activities that should be prioritized are cleaning and disinfection. While these tasks may seem similar at first glance, they serve distinct purposes and are both vital for optimizing system performance. [...]
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Complete Water Solutions Announces Expansion

August 29, 2024 · By Nathan Olszak
The Complete Water Solutions Expansion was announced today with the final approval for a new 12,000 sq. ft. building located @ 851 W Main Street Twin Lakes Wisconsin. The new facility will enable Complete Water Solutions to broaden our inventory and increase our workforce. The Complete Water Solutions Expansion 12,000 sq. ft. Expansion Twin Lakes [...]
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How do Industries Benefit from Water Purification Treatment?

August 1, 2024 · By Nathan Olszak
Water purification is a critical component of modern industrial business operations. By creating a consistent supply of safe, clean water, businesses can optimize their processes, enhance product quality, and achieve significant cost savings. From manufacturing and pharmaceuticals to food processing and electronics, the importance of water purity has an effect on a variety of industries. [...]
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