Informational articles, relevant water system tips and upcoming training events

Activated Carbon

By Craig Brown | Pureflow, Inc. Activated carbon is a form of graphite that has been processed to create millions of tiny pores between the carbon atoms.  This increases the…

The How & Why of Water Softeners

By Richard K. Nielsen | Catalent Pharma Solutions Inc Introduction The US Geological Service states that the surface waters in more than half of the United States are hard to…

Heat Exchangers For Water Purification Processes

By Harv Scholz, PE | Pureflow, Inc. Heat Exchanger Basics  A heat exchanger is a device used to transfer heat from one process stream to another, without having the two…

We are growing!

By Katie Fath | Pureflow, Inc. Pureflow is proud to announce the opening of its new office in Irving, Texas as a way to better accommodate the needs of our current…

Time, Trust, and Investment: Improving the Customer/Supplier Relationship

By Matt Dillon | Business Developer | Pureflow, Inc.   Many times when we are the customer or the supplier, we can view the other party as if we are dealing with…

Attributes of Leadership: Optimism

By Matt Dillon | Business Developer | Pureflow, Inc. Optimism is one of the leading attributes of a successful leader. My definition for optimism is looking ahead in preparation for additional opportunities.…

Electrodeionization Performance Monitoring

By Steve Siverns | Chemical Engineer | Pureflow, Inc.   Electrodeionization (EDI, or sometimes CDI or CEDI) is a way to demineralize water using electricity as the driving force. It is used…

The Correct Way To Do A Membrane Change Out

By Jonathan Guthrie | Service Technician | Pureflow, Inc. The objective of this article is to go through the steps of a successful membrane change out from a service technician’s point of…

Sales is Serving

By Matt Dillon | Account Manager | Pureflow, Inc. Sales can be defined in many different ways, but being successful in sales can be summed up into one word: Serving…

Basics of Ultrafiltration

By Harv Scholz, P.E. Senior Mechanical Engineer | Pureflow, Inc. Ultrafiltration, also known as UF, is a class of filtration that uses a membrane, either in the form of a spiral…

RO Membrane Cleaning

By Steve Siverns & Stephen Boles | Pureflow, Inc. Reverse osmosis (RO) membrane elements become fouled over time due to deposition on the membrane surface.  The membrane becomes blocked and…

Instrumentation for High Purity Water Systems

By David Ferguson, Electrical Engineer | Pureflow, Inc. Instrumentation is a vital component of high purity water systems. Of equal importance is selecting the right instrument for the task at…

30 Years and Counting

The Birth of Pureflow For over 30 years, Pureflow’s core values have been non-negotiable. The pursuit of our mission to provide uncompromising quality solutions to our customers is rooted in three…

Why Sampling Is Important- Part 2

By Dr. Teri C. “TC” Soli, SoliPharma Solutions Poorly executed sampling is the cause of most excursions from microbial process control trigger values (Alert and Action Levels) and specifications. In Part 1…

Ozone and Its Application to High Purity Water Systems

By Harv Scholz, Sr. Project Engineer, Pureflow, Inc. Even in a high purity water system, there is always a concern about having microbial growth within the system. Should this growth…

Why Passivate Stainless Steel and What Happens If You Don’t

By Patrick H. Banes, Astro Pak Corporation (astropak.com) To ensure having the maximum corrosion resistance that austenitic stainless steel has to offer, the stainless steel surface must be in a…

Why Sampling Is Important- Part 1

By Dr. Teri C. “TC” Soli, SoliPharma Solutions The maintenance and control of a water system to provide and distribute water of acceptable chemical and microbiological quality is undoubtedly the…

The Impact Of Chloramines On High Purity Water Systems

By Glenn Garrison One of the key functions of pretreatment in most High Purity Water systems is the removal of chlorine from municipal feed water sources. As more municipalities make…

Reducing Organism Counts In RO Product Water

By Dr. Theodore H. “Ted” Meltzer The reliance upon Reverse Osmosis operations in the manufacture of process waters in both the pharmaceutical and semiconductor industries is well established. Curiously, the…

Maximizing UV System Performance

By Eric Peterson, UV Sales and Service Manager, Pureflow, Inc. It Takes More Than Scheduling an Annual Lamp Replacement to Maximize The Performance of a UV System. In order to…

Using Liqui-Cel Membrane Contactors To Solve Resistivity Problems In A High Purity Water Loop

By MEMBRANA and Jason Bailey Pureflow and Membrana collaborated to provide a simple, economical solution to an operational issue at one of their customer’s facilities. The existing high purity system…

UV Solutions for Prevention of Nosocomial Legionella

Aquafine technical paper on UV solutions for prevention of Nosocomial Legionella Outbreaks of nosocomial Legionnaires disease might easily exist unnoticed in a hospital, resulting in patient illness or possible patient…

The Basics of Water Chemistry

By C.F. “Chubb” Michaud Water chemistry is basic but, nonetheless, it’s still chemistry. Understanding the fundamentals of chemistry is necessary in order to grasp the full breadth of how certain…