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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
discontinued RO membranes, RO membrane news, RO membranes discontinued

Discontinued Membranes

January 11, 2023 · By Nathan Olszak
Today Veolia (Formerly Veolia Water Technologies) announced that they will be discontinuing some of their spiral wound membranes. Complete Water Solutions has put together a table below of the membranes that are being discontinued. Some of them will have suggested replacement models in the notes section. Some of the membranes may not have a direct [...]
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Complete Water Solutions Welcomes Cindy To The Team

December 30, 2022 · By Nathan Olszak
Cindy has joined our Inside Sales Team Complete Water Solutions Welcomes Cindy To Inside Sales Team Complete Water Solutions is excited to announce Cindy has joined our Inside Sales Team. Prior to Complete Water Solutions, Cindy was with another company helping customers with parts and components for the auto industry. Cindy has already been instrumental [...]
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Water Treatment Inside Technical Sales – Josh L.

December 22, 2022 · By Nathan Olszak
Complete Water Solutions is excited to announce the promotion of Josh to the sales team as our new Inside Technical Sales Specialist. In the past 2 years, Josh has accomplished great things in our Tech Services Team. He has installed & serviced many different types of water treatment equipment for various industries. Josh is also [...]
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Before You Purchase an Industrial RO System: Pre-Treatment

December 6, 2022 · By Nathan Olszak
If you're looking to purchase an Industrial Reverse Osmosis (RO) System, there are quite a few things you need to think through.  At Complete Water Solutions, our goal is to come alongside you as a partner and help you make the best decisions for your business when it comes to your RO system. After you've [...]
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Industrial RO System: Sizing the System Appropriately

November 28, 2022 · By Nathan Olszak
If you're looking to purchase an Industrial Reverse Osmosis (RO) System, there are a number of things you should be aware of.  At Complete Water Solutions, our goal is to come alongside you as a partner and help you make the best decisions for your business when it comes to your RO system. After you've [...]
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Complete Water Solutions Rockstar Award

October 3, 2022 · 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 like to recognize Keith H. and Trent J. for earning the Rockstar Award. They have gone above and beyond to help our customers with their [...]
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Childhood Cancer Fundraising Drive

September 9, 2022 · By Nathan Olszak
Complete Water Solutions Childhood Cancer Fundraiser      At Complete Water Solutions, we believe that a small business is more than just a small business, it’s a family. When a family member is going through something difficult, you rally around them and do what you can to support each other. It’s in that spirit that [...]
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Why it’s Important to Clean your Industrial RO System Membranes

August 29, 2022 · By Nathan Olszak
If you're running an industrial RO system, it's not only important, it's essential to clean your industrial RO system membranes. In order to ensure that you are producing the cleanest possible water, you must work with the purest possible Reverse Osmosis (RO) system. This is doubly important when working with an Industrial Reverse Osmosis System [...]
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Industrial Reverse Osmosis (RO) System Upgrades

August 1, 2022 · By Nathan Olszak
Wondering if you need to upgrade your RO System? Complete Water Solutions can help when you're thinking about Industrial Reverse Osmosis (RO) system upgrades. Our water experts have experience and knowledge of every water system product, offering the best recommendations which are most suitable for your needs. If you’re wondering if you need an Industrial [...]
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How to Remove Radium from Water

July 1, 2022 · By Nathan Olszak
How to Remove Radium 226 from Your Water Supply You may have heard about radium in your water and how essential it is to remove that. Here at Complete Water, we know how to remove radium from water using your industrial water system. Read on to learn more about radium, why radium should be removed [...]
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Jose has joined the Tech Team @ Complete Water Solutions

June 26, 2022 · By Nathan Olszak
Complete Water Solutions is excited to announce Jose has joined the Tech Team. Prior to Complete Water Solutions, Jose has worked in the maintenance and installation field. His skill and dedication to getting the job done are already making an impact here at Complete Water Solutions. We are excited to have Jose as part of [...]
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