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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

Pentair Structural Tank: Check The Serial Number for Coverage

May 16, 2018 · By Nathan Olszak
Recently, Complete Water did a sales call at an aerosol facility for a Pentair structural tank.  The system they purchased was only about 5 years old. They did not purchase it from Complete Water Solutions and all 3 fiberglass tanks were ruptured spraying water. While not really noticeable in this picture, the customer did have [...]
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Veolia Cartridge Filters from CWS

May 16, 2018 · By Nathan Olszak
COMPLETE WATER SOLUTIONS is well-versed in Industrial & Commercial Veolia Cartridge Filters. Veolia Water Technologies & Solutions systems are designed to solve the toughest water challenges wherever they occur. With Veolia, you can rest assured their vast technical experience in ultrafiltration (UF) and reverse osmosis (RO) are combined into one integrated platform. Complete Water Solutions can [...]
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Veolia RO Membranes from CWS

May 9, 2018 · By Nathan Olszak
Veolia RO Membranes Need help with your Veolia RO Membranes? COMPLETE WATER SOLUTIONS is well versed in Industrial & Commercial Veolia Reverse Osmosis Membranes. Veolia Water Technologies & Solutions systems are designed to solve the toughest water challenges wherever they occur. With Veolia, you can rest assured their vast technical experience in ultrafiltration (UF) and reverse [...]
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GE Reverse Osmosis Systems

May 2, 2018 · By Nathan Olszak
Do you have a GE Reverse Osmosis System? Not Sure Where To Get Help for your GE Reverse Osmosis System? Good news you don’t have to look any further. Back in 2003 GE purchased Osmonics and formed GE Water & Process Technologies. Since then the brand has been sold again but not to worry because [...]
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What Else Do I Need With My RO System?

April 27, 2018 · By Nathan Olszak
An Industrial Guide To What You Need In Front Of Your RO System We start this post with a strong WARNING – We are providing this information as a general guide to diverse types of pretreatment required before a Reverse Osmosis Systems. Every Water Source & Situation Can Be Different – PLEASE CONSULT WITH YOUR [...]
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Osmonics Reverse Osmosis Systems from CWS

April 25, 2018 · By Nathan Olszak
Osmonics RO Systems: Decades of Reliable Performance Osmonics RO Systems have a long-standing reputation for durability, reliability, and exceptional water purification performance. At Complete Water Solutions, we have been supporting, servicing, and supplying Osmonics RO Systems for decades. Osmonics began manufacturing industrial-grade reverse osmosis equipment in the 1970s, and their systems quickly became known for [...]
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Tonkaflo Pump from Complete Water

April 24, 2018 · By Nathan Olszak
COMPLETE WATER SOLUTIONS is well versed in Industrial & Commercial Veolia Tonkaflo pumps. Veolia Water Technologies & Solutions systems are designed to solve the toughest water challenges wherever they occur. With Veolia, you can rest assured their vast technical experience in ultrafiltration (UF) and reverse osmosis (RO) are combined into one integrated platform. Complete Water [...]
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veolia water solutions, complete water solutions, industrial ro

Veolia Reverse Osmosis Systems

April 18, 2018 · By Nathan Olszak
Complete Water Solutions is a Veolia Water Technologies & Solutions Channel Partner. This partnership allows Complete Water Solutions the opportunity to support, sell, and design water treatment systems using the Veolia Reverse Osmosis System Brand. There are many models to choose from when it comes to finding the right size system, not to mention there [...]
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Industrial Water System Sanitization, complete water solutions

Industrial Water System Sanitization

April 11, 2018 · By Nathan Olszak

Join Nathan with Complete Water Solutions as we take a quick look at sanitization. This is extremely important for Food, Pharmaceutical, and Beverage Manufacturers. Water System Sanitization Experts Complete Water Solutions can help you to sanitize your equipment as well as create documentation for repeat use. Learn more by visiting complete-water.com. Look at Common Questions […]

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hiring, complete water solutions, careers

Experienced Technicians Wanted $2,500.00 Sign On Bonus*

April 11, 2018 · By Nathan Olszak
Open Position: Experienced Service Technician $2,500 Sign On Bonus* Job Description & Duties: We are currently searching for a Full-time (40 hours/week) field service technician to support our water treatment business. This position is for an experienced field service technician. Responsibilities include but are not limited to the following: Diagnose and repair water treatment equipment Starting [...]
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water treatment training, water system training, classroom training ro water

Onsite Hands On Training – RO Training & Pre-Treatment

April 4, 2018 · By Nathan Olszak
Complete Water Solutions offers onsite Water Equipment Training for you and your team in the field of Water Treatment Equipment. Comprehensive Onsite Water Equipment Training Our comprehensive program will provide everything from the basics to hands-on troubleshooting and repair of your water treatment equipment. It's customized training on your system! We provide everything from parts, [...]
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Softener Tank Replacement – Is Your Softener Tank Under Warranty?

March 28, 2018 · By Nathan Olszak
Leaking Softener Vessel Complete Water Solutions was contracted to replace a softener vessel that was leaking. The old softener vessel was removed and disposed of. Complete Water Solutions supplied a new fiberglass softener vessel 36″ Diameter x 72″ Tall made for a Fleck 3900 Softener Valve. The new tank was manufactured by Pentair and comes [...]
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