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

Why Pharmaceutical Companies Trust Complete Water Solutions

Why is CWS considered the Pharmaceutical Water Treatment company you can trust? Complete Water Solutions was called in 3 years ago as this Pharmaceutical Company was trying to validate its water system and was having trouble with the existing sanitization and operations. Complete Water Solutions began reviewing the water system and past procedures. After our [...]

RO System Failure – Low Flow, High Pressure & High Conductivity

Ever dealt with Commercial RO System Failure? Complete Water Solutions was called out for an emergency to get our client's Reverse Osmosis System back up and running. The problems that they were experiencing were High Conductivity, High Pressures & Low Flow. Commercial RO System Failure Hard Water Issues Emergency RO Service for RO System Failure [...]

SCALE – HOW IS SCALE DETRIMENTAL TO BOILERS (CONTINUED)

In our last article (Scale – How Is Scale Detrimental To Boilers), we discussed water hardness, different types of hardness, and we focused on some ways to pre-treat for water hardness prior to the feed water tank. In this article, we will shortly review what water hardness and we will focus on After-Treatment. What Is Water Hardness? [...]

Paint Line Rinse Water – Performa Softener & Osmonics RO System

Performa Softener System w/ Osmonics RO System Recently Complete Water Solutions received a call regarding spotting on Paint Line Rinse Water. This current customer uses RO Water to rinse the final product prior to boxing and shipping the products to their customers. The customer had not had much experience with Reverse Osmosis & Softener systems [...]

SCALE- HOW IS SCALE DETRIMENTAL TO BOILERS?

In this article, we will answer how is scale detrimental to boilers. But first, let’s take a moment to understand scale and the differences between different types. What Is Water Hardness? Water hardness (also referred to as “Hardness of water”) is a measurement in parts per millions (ppm) of calcium and magnesium in the water. [...]

RO System Preventative Maintenance Program

Parts & Service Preventative Maintenance Program Are you in need of a professional company to provide an RO System Preventative Maintenance Program for your industrial system? For many, your industrial water treatment system may consist of many pieces of equipment. Everything from softeners, carbon filters, and reverse osmosis systems. Many manufacturers agree that mechanical water [...]

1,000 GPM Sand Filtration For Turbidity & Color Reduction

Industrial Sand Filter Installation Our client had already purchased a 1,000 Gallon Per Minute Sand Filtration System from Complete Water Solutions. With their existing horizontal sand filtration beginning to leak media into the facility, it was deemed necessary to begin the next phase of the filtration replacement. The sand filtration consisted of the following: Qty [...]

25 GPM Reverse Osmosis System – For FujiFilm USA

https://complete-water.com/wp-content/uploads/Industrial-Reverse-Osmosis-Fuji-8-Day-Time-Lapse-7C-Complete-Water-Solutions.mp4 Fujifilm USA contacted Complete Water Solutions because their old Deionized Water System was on its last leg. Over the years Fujifilm's had put quite a bit of money into the existing DI Water System. Based on some of the paperwork the system was originally installed in 1972 and had been upgraded a few times [...]

Water Treatment Equipment Leasing

Are you wondering how Water Treatment Equipment Leasing can benefit you? It has been a long-standing tradition that many of us want to see the "payback" or "savings" from upgrading or replacing your water treatment equipment. While it may not be true for every situation, many customers see immediate results by upgrading or replacing their existing [...]

Emergency DI Water – Emergency DI Exchange Tanks – Chicago Land IL

Complete Water Solutions was contacted when a medical manufacturer needed DI Water and the current supplier could not deliver. The customer had called their DI Water / DI Bottle supplier for an emergency exchange several times. With no response, they began to search. Emergency DI Water Supplier After contacting Complete Water Solutions we mobilized and […]

Maintain an Industrial Water Softener System

Are you wondering how to maintain an industrial water softener? A good preventative maintenance plan can help you avoid most softener failure issues. Today, people use softener systems for various applications, from general water conditioning to industrial ingredient water. A few manufacturers of valves control the softening function, and many agree that having a preventative maintenance plan in [...]

GE Osmonics AK4040F Membranes – Reverse Osmosis Membrane Replacement

Complete Water Solutions was recently contracted to replace all the membranes in (2) RO Systems. Each RO System was manufactured by different companies. That is not a problem for Complete Water Solutions! We provide parts, membranes, and service for all manufacturers. No matter who you bought it from or the application Complete Water Solutions can […]

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