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

Tonkaflo Pump from Complete Water

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 [...]

Veolia Reverse Osmosis Systems

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 [...]

Experienced Technicians Wanted $2,500.00 Sign On Bonus*

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 [...]

Industrial Water System Sanitization

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 […]

Onsite Hands On Training – RO Training & Pre-Treatment

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, [...]

Softener Tank Replacement – Is Your Softener Tank Under Warranty?

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 with a 5-year […]

Professional Water System Sanitization

Complete Water Solutions is trusted by some of the top manufacturers in the pharmaceutical industry to perform routine maintenance along with system sanitization. Complete Water Solutions can work on all major brands of water treatment equipment, even bringing experience that can help keep your system up to good quality standards. Scheduled Water System Maintenance Not […]

Fleck 3900 Softener Repair – Emergency Softener Repair

Complete Water Solutions was called out for emergency repair due to one softener was hard and the brine tank was overflowing. Upon further inspection, Complete Water Solutions found that the Fleck 3900 Part # 60036 was stuck in the open position. When we removed the old piston we found that there was a chunk of […]

Industrial Iron Filter Turnkey Solution

Complete Water Solutions was contracted to provide a turnkey Iron Filter Replacement. The existing iron filter was leaking media into the food production facility causing issues with the product and other various equipment throughout. The existing iron filter was loaded with Greensand Media, Aquamatic Blocking Valves along with Time Clock Stager Operation. Iron Filter Turnkey […]

Membrane Reload 8″ Reverse Osmosis

Complete Water Solutions can service all major manufacturers of Reverse Osmosis Systems. This Nalco / Crossbow Reverse Osmosis system was producing water that was not meeting the quality set forth for system design. After attempting to clean the RO System it was found that the system was not recovering. Turnkey RO Membrane Replacement Complete Water […]

Complete Water Solutions Past Service Locations

 Water System Service Across the United States and Beyond! No matter your location, Complete Water Solutions can help with all of your Industrial Reverse Osmosis parts, service, and repair! (855) 787-4200 or info@complete-water.com Contact us today!

Paint Line Pretreatment Washer – Reverse Osmosis System

Complete Water Solutions can help with your Paint Line Pretreatment Washer. The pretreatment washer is considered the most important part of the coating process in order to achieve a desirable and long-lasting finish. At Complete Water Solutions our sole focus is on providing clean Reverse Osmosis / Low Conductivity Water for this process. The cleaner [...]

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