424 Chlorine Dioxide Insights with Greg Simpson
Scaling UP! H2O
A Lifelong Exploration into Chlorine Dioxide In this episode of Scaling UP! H2O, Trace Blackmore welcomes Greg D. Simpson, a recognized authority on chlorine dioxide and a long-time researcher, writer, and technologist in the industrial water treatment space. With decades of hands-on experience and a personal archive of thousands of technical papers, Greg brings unmatched depth to this essential conversation. From Field Trials to File Cabinets Greg takes us through his early career, from being tasked to explore chlorine dioxide as an alternative disinfectant on the...
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423 Pushing the Boundaries: Jacob Deak on Innovating Water Treatment Systems
Scaling UP! H2O
In this episode of Scaling UP! H2O, host Trace Blackmore interviews , Marketing & Inside Sales Director at , for a deep dive into how innovation is born—not in labs, but in the field. Jake shares the story of Pyxis Lab’s rapid evolution from a lean, hands-on team to an industry leader in developing smart, user-informed water treatment technology. Building Solutions from Real-World Problems Jake Deak's journey began during the pandemic, stepping into a role shaped by both legacy and urgency. Working closely with his father and the Pyxis team, he reveals how their approach...
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422 Inside the Association of Water Technologies with John Caloritis
Scaling UP! H2O
In this milestone episode, host Trace Blackmore welcomes of and current President of the . Together, they explore the strategic evolution of AWT and announce an exciting new partnership that officially makes Scaling UP! H2O the association's podcast partner. This conversation is a rare behind-the-scenes look into how AWT operates, from board decisions to training initiatives, and what the future holds for water treatment professionals who want to lead, grow, and make an impact. Behind the Boardroom: How AWT Operates at the Top John Caloritis gives a full picture of how the...
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421 The Benefits of Tagged Polymers in Water Treatment with Gary Garcia
Scaling UP! H2O
“Keep it simple because the more complex things get, the less people will do it” - Gary Garcia For years, water treatment professionals have relied on PTSA tracers to estimate system performance, but emerging technologies are offering clearer, more direct answers. In this episode of Scaling UP! H2O, host Trace Blackmore welcome once again returning guest Garret "Gary" S. Garcia of , now a business unit of to explore how fluorescent tagged polymers are revolutionizing the way water treaters monitor system health and chemical performance. With decades of expertise, Gary offers practical...
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420 Tapping Into Tech: How Ben Frieders Uses AI to Elevate Water Treatment Marketing
Scaling UP! H2O
"Continue to learn something new every day.” What happens when a Navy-trained water chemistry expert dives into AI-powered marketing? You get —Marketing and Business Development Manager at —who’s turning the tide on how water treatment professionals use tech. Whether you're still skeptical of AI or already exploring tools like ChatGPT, this episode offers a masterclass in practical, professional applications tailored for the water treatment world. From the Navy to Water Treatment: Ben’s Story Ben Frieders shares his journey from operating nuclear submarines to...
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419 Leading with Purpose: Culture, Customers, and Chemical Supply with Dave Fitzgerald
Scaling UP! H2O
In this episode of Scaling UP! H2O, host Trace Blackmore reconnects with returning guest , President of North Metal & Chemical Company. Known for his forward-thinking predictions, Dave returns to share valuable insights into supply chain forecasting, emotional intelligence in leadership, and how a strong culture can shape business longevity. Purpose-Driven Predictions Dave doesn’t just react—he predicts. Learn how he turns economic signals, freight trends, and material pricing into reliable forecasting tools to protect inventory and serve loyal customers. ...
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418 Maleic Acid-Based Corrosion Inhibitors: Expanding the Water Treatment Toolbox with Mike Standish
Scaling UP! H2O
Corrosion control is fundamental to the success of any water treatment program, but how often do we question the limitations of the tools we rely on? In this episode of Scaling UP! H2O, host Trace Blackmore welcomes back returning guest , Vice President of Water Additives at , to explore the evolving role of maleic acid-based corrosion inhibitors in industrial water treatment. Drawing on decades of expertise, Mike shares practical insights into when — and when not — to use these innovative solutions to meet today's complex challenges. Understanding the Corrosion Control Toolbox Mike...
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417 How To Live a Life of Significance: Insights from Aaron Walker
Scaling UP! H2O
“ Don’t Just Be Successful – Be Significant” How do you define success? Is it about financial achievement, accolades, or influence? What if true fulfillment lies in significance rather than just success? In this episode of the Scaling Up H2O podcast, we welcome back a distinguished guest, . With over four decades of entrepreneurial experience, Aaron has not only built thriving businesses but has also dedicated his life to mentoring others, helping them navigate their paths with purpose. His belief that "Relationships Matter Most" is a guiding principle for those seeking deeper...
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416 The SteriPen Revisited: Scaling UP! Your UV Digestion Knowledge
Scaling UP! H2O
“Always test your tools before field use. Side-by-side comparisons ensure repeatability and accuracy.” In this episode of Scaling UP! H2O, host delivers an in-depth update on the SteriPen, a widely used tool for water treatment professionals. After overwhelming demand from listeners, we revisit the SteriPen, its capabilities, and its impact on testing organic phosphates and azoles. If you're looking for efficiency, precision, and portability in water testing, this episode is packed with actionable insights. The Evolution of the SteriPen Learn how the SteriPen became a game-changer...
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415 Green Building Updates: What You Need to Know
Scaling UP! H2O
“When there’s a will, there’s a way.” - Charlie Cichetti Sustainability is more than just a trend—it’s a commitment to a better future. In this episode of Scaling UP! H2O, host Trace Blackmore sits down with , LEED Fellow + WELL AP, CEO + Co-Founder of a leading expert in green building to discuss the latest updates in sustainability and how they impact industries worldwide. From energy efficiency to new LEED requirements, Charlie breaks down what professionals need to know about the latest green building innovations. Whether you’re a facilities manager, an industrial...
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A Lifelong Exploration into Chlorine Dioxide
In this episode of Scaling UP! H2O, Trace Blackmore welcomes Greg D. Simpson, a recognized authority on chlorine dioxide and a long-time researcher, writer, and technologist in the industrial water treatment space. With decades of hands-on experience and a personal archive of thousands of technical papers, Greg brings unmatched depth to this essential conversation.
From Field Trials to File Cabinets
Greg takes us through his early career, from being tasked to explore chlorine dioxide as an alternative disinfectant on the Gulf Coast to becoming a dedicated advocate of its power and versatility. He explains why chlorine dioxide often outperforms traditional biocides like bromine and chlorine, especially in complex environments such as refineries, hospitals, and cooling towers.
Comparing Monochloramine and Chlorine Dioxide
A central theme in the episode is Greg’s recent research comparing monochloramine and chlorine dioxide. He shares real-world case histories, including treatments at major institutions and breaks performance differences in terms of biofilm penetration, disinfection byproducts, and residual impact. He also discusses regulatory hurdles, competitive dynamics, and what the literature says about long-term microbiological effects.
Building Disinfection Systems and Emerging Applications
The episode explores chlorine dioxide’s expanding role in building disinfection, especially healthcare facilities. Greg shares how generator technologies are changing the game, while also diving into regulatory constraints in places like Texas. He further explains the promising potential of chlorine dioxide in air disinfection and surface sanitation, drawing from both studies and practical implementations.
A Legacy of Learning
From assembling four filing cabinets of technical papers to writing multiple books and collaborating with other industry pioneers, Greg's story is one of relentless inquiry. His work continues to influence how the industry thinks about safe and effective disinfection strategies.
Conclusion
Greg Simpson’s insights go far beyond operational know-how. This episode is a masterclass in both the science and history of chlorine dioxide in industrial applications. For professionals seeking to deepen their understanding of advanced water treatment chemistry, this conversation is essential.
Call-To-Action
Explore more episodes of Scaling UP! H2O to stay current on the science, tools, and trends shaping industrial water treatment. Continue the conversation with peers, and never stop learning.
Stay engaged, keep learning, and continue scaling up your knowledge!
Timestamps
04:13 – Water You Know with James McDonald
05:28 – Upcoming Events for Water Treatment Professionals
07:43 – Trace starts the interview with introduction of the master of all things – Chlorine Dioxide
16:25 – Trace asks about paper presented at the Association of Water Technologies chlorine dioxide versus chloramine, a review
31:30 – Benefits of Chlorine Dioxide in Pulp Bleaching and reduced environmental toxicity
36:04 – Chlorine dioxide vs. Monochloramine in hospital water systems and Legionella prevention
41:08 – Advice for Professionals
Quotes
“Find an area to focus on and know more about that than anybody else.”
“Chlorine dioxide doesn’t differentiate too much between the walls and what’s in bulk water.”
“When we changed to chlorine dioxide, it was five or six months before we saw a residual at the other end of our distribution system.”
“Chlorine dioxide does not chlorinate directly any organic.”
Connect with Greg D. Simpson
Phone: +17132060250
Email: [email protected]
Website: PureLine
Click HERE to Download Episode’s Discussion Guide
Guest Resources Mentioned
Chlorine Dioxide vs. Monochloramine: A Review technical paper
Practical Chlorine Dioxide: Volume I – Foundations
Practical Chlorine Dioxide: Volume II - Applications
Practical Chlorine Dioxide: Volume III - Oil and Gas
A Focus on Chlorine Dioxide: The "Ideal" Biocide technical paper
The Safe and Effective Use of Chlorine Dioxide technical paper
Biofilm: Removal and Prevention with Chlorine Dioxide technical paper
Scaling UP! H2O Resources Mentioned
AWT (Association of Water Technologies)
Scaling UP! H2O Academy video courses
Water You Know with James McDonald
Question: Which water analysis measures the concentration of hydrogen ions in water?
2025 Events for Water Professionals
Check out our Scaling UP! H2O Events Calendar where we’ve listed every event Water Treaters should be aware of by clicking HERE.
