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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

The Hidden Costs of Poor Pretreatment in Industrial Water Systems

November 3, 2025 · By Nathan Olszak
Industrial Water Systems are the heartbeat of modern production. When you have poor pretreatment in industrial water systems or it's ignored or underdesigned, unseen costs pile up fast: unplanned downtime, wasted energy, scrapped product, compliance issues, and premature equipment failure. At Complete Water Solutions, our 50+ years of combined experience maintaining, repairing, and upgrading complex [...]
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5 Warning Signs Your Industrial Water Treatment System Needs Attention

October 6, 2025 · By Nathan Olszak
Does Your Industrial Water Treatment System Needs Attention? Running a successful operation in industries like food and beverage manufacturing, pharmaceuticals, mining, or energy production relies on one essential element: water. A well-functioning industrial water treatment system is critical to ensure water quality, protect equipment, and maintain compliance. But when your system starts showing signs of [...]
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RO Systems Reduce Operating Costs in Manufacturing, Industrial RO, cost of RO

How Industrial RO Systems Reduce Operating Costs in Manufacturing

September 8, 2025 · By Nathan Olszak
The High Cost of Water in Manufacturing In today’s competitive manufacturing environment, every dollar matters. From beverage and food production to pharmaceuticals and power generation, water quality and treatment directly impact productivity, efficiency, and compliance. Poor water treatment doesn’t just affect product quality, it leads to expensive downtime, higher energy bills, and premature equipment failure. [...]
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industrial water systems, commercial water systems, complete water solutions

How to Prevent Downtime Caused by Water System Failures

August 4, 2025 · By Nathan Olszak
As a business, the worst thing that can happen is having a system fail. We know that staying productive is crucial to the success of a business. A system failure will ruin your productivity and push back deadlines you need to meet. You might be wondering, “How do you prevent downtime caused by water system [...]
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what contaminants should i be testing for

Contaminants in My Industrial Water: What to Test For?

June 2, 2025 · By Nathan Olszak
When it comes to your business, no matter what industrial operation you’re running, water quality isn’t just an important factor. It’s essential. Whether it’s boilers, cooling towers, manufacturing lines, or sanitation systems, your water quality has a direct affect on the performance and safety of your equipment. Poor water quality can lead to a variety [...]
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when should i have my water system serviced, when to service my water system

How Often Should Industrial Water Systems Be Serviced?

May 5, 2025 · By Nathan Olszak
Water systems are the lifeline of daily operations in industrial settings. Having a water system that is running smoothly is crucial to maintaining a productive industrial business.  You want to ensure your system runs efficiently to improve your productivity, stay in compliance with safety and health regulations, and reduce the costs of your operation. The [...]
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Industrial water filters

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
Contaminants Found in Industrial Water Systems & 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 just [...]
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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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