461 Corrosion, Lead, and Algae: New Tools for Old Water Problems
Release Date: 01/30/2026
475 Inside the Boiler: Inspection, Failure Analysis, and Photography with Cheryl Heiser
Scaling UP! H2O
A boiler failure can create pressure quickly: production is down, emotions are high, and the water treater may be the first person blamed. of . joins Trace Blackmore, CWT, to walk through a more disciplined way to evaluate boiler issues by looking beyond chemistry alone. Why Boiler Failures Need a Broader Lens Cheryl brings field experience from the OEM boiler side, conventional water treatment, and purified tannin boiler treatment. Her perspective is rooted in the idea that no two boilers are the same. Design, operating conditions, fuel, history, circulation, steam...
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474 Questions from the Scaling UP! Nation about Trace
Scaling UP! H2O
Every career in industrial water treatment is shaped by decisions, mentors, credentials, systems, and the willingness to keep learning. In this special mailbag-style episode, Trace Blackmore, CWT, answers questions from the Scaling UP! Nation about how he entered water treatment, why he started the podcast, what professional credentials have meant to him, and what he is still working to improve. This conversation gives water professionals a practical look at the habits behind a long career in the industry: getting involved early, documenting customer conversations, building strong...
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473 From Oil to Water: How the Water Midstream Sector Was Born with John Durand
Scaling UP! H2O
Industrial water professionals often think about water in terms of treatment, compliance, reuse, and operational risk. John Durand brings a different but closely connected view: water as infrastructure, water as a managed resource, and water as a strategic part of energy development. , one of the early pioneers of the water midstream sector and CEO of Magnificent Desolation, LLC, joins Trace Blackmore to explain how produced water moved from a disposal challenge to a large-scale infrastructure opportunity. From Disposal Model to Managed Resource John describes how...
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472 Finding and Fixing the Invisible: Chris MacDonald on Pressure Pipe Inspection and Rehab
Scaling UP! H2O
"Document everything." Spring startup season exposes more than operational stress. It also reveals what happened months earlier when systems were laid up poorly, maintenance steps were skipped, or warning signs were documented but not acted on. In this episode, Trace Blackmore connects that reality to a broader infrastructure problem: hidden damage inside pressure piping systems that operators often cannot see until a leak, rupture, or budget crisis forces action. Why hidden pressure pipe problems are so expensive , CEO and President of , explains why pressure pipe...
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471 Biofilms, Biocides, and TTPC: A Deep Dive with Dr. Jeff Kramer
Scaling UP! H2O
Biofilm is not a fringe issue in cooling systems. As Dr. Jeff Kramer explains, it is a given. That matters because biofilm affects heat transfer, contributes to corrosion, and can serve as a reservoir for Legionella in treated systems. In this conversation, Trace Blackmore and Dr. Kramer examine what experienced water treaters should be looking for when choosing and evaluating a microbiological control program. Biofilm as an operating problem Dr. Jeff defines biofilm as a community of microorganisms attached to a surface and held together by an external polymeric matrix. From there,...
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470 Wastewater Enthusiast: Training the Next Generation Online
Scaling UP! H2O
has built a following by doing something wastewater operators have needed for a long time: making practical technical education easier to access. In Episode 470, he explains why that matters, how he built , and what the industry still gets wrong about training, certification, and knowledge transfer. From test prep to true understanding A major thread in this conversation is the gap between passing an exam and actually understanding plant operations. Shawn reflects on his own early experience with certification prep, where classes helped him recognize test questions but did not always help him...
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469 ABMA: The Oldest Association Meets Today’s Challenges
Scaling UP! H2O
Boiler performance rarely depends on a single decision. It depends on design, controls, maintenance, workforce capability, and, as this conversation makes clear, the quality of water treatment. and explain how is addressing those realities by connecting manufacturers, representatives, suppliers, and field stakeholders around education and practical guidance. Why ABMA still matters in a changing boiler market ABMA has been in place since 1888, but this discussion is not about preserving old structures for their own sake. Scott and Shaunica describe an association that has expanded beyond...
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468 Born into Water Treatment: Tom Brandvold on AWT’s Origin Story and a Life in the Industry
Scaling UP! H2O
Tom Brandvold, CWT, has lived industrial water treatment from the inside out. In this conversation, he traces that path from sweeping floors and running sample bottles as a kid to leading Premier Water and Energy Technology and serving as a former president of . The result is not just a career story. It is a useful look at how credibility, collaboration, and standards are built over time in this industry. How Association of Water Technologies (AWT) was formed One of the most valuable parts of this discussion is Tom’s explanation of how Association of Water Technologies (AWT) began. The...
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467 From PhD to Pump Rooms: Jake Elliott on Wastewater, Efficiency, and Saying “Yes” Wisely
Scaling UP! H2O
What happens when a water chemist leaves the lab and heads to the pump room? knows firsthand. A former PhD researcher who studied resource recovery from trade‑waste customers, Jake now manages accounts at in Melbourne, working with cooling towers, boilers, chemical dosing rigs and wastewater treatment systems. He joins host Trace Blackmore to discuss how rigorous research, regulatory compliance and process automation translate into practical field work for industrial water treatment professionals. From PhD Research to Industrial Practice Jake’s academic background informs the way he...
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466 Stories, Math, and “Never Again” Moments: Inside AWT Technical Training with Dan Merritt (Part 2)
Scaling UP! H2O
AWT’s in‑person technical training is a keystone for developing competent water treaters. Yet classroom knowledge only matters when it survives the drive home and emerges later in the field. In this second conversation with —National Sales Manager at and head of AWT’s education committee—Trace Blackmore uncovers how stories, math, and memorable mistakes turn theory into intuition. Why training keeps evolving Dan explains that the rewrites courses every year. Instructors refine content, delivery and demonstrations, not for novelty’s sake, but because...
info_outlineCorrosion rarely announces itself as a “big water problem.” It shows up as leaching at the tap, residual loss in the field, premature equipment replacement, and the slow, expensive erosion of decision-quality.
Pat Rosenstiel (CEO) and Wolf Merker (chemist/Chief Science Officer) of Great Water Tech lay out a system-wide view of corrosion control—starting with what changed in Flint from a technical standpoint and moving into why many utilities still struggle to meet expectations when standards and risk assumptions shift.
System-wide corrosion control starts with chemistry and consequences
A source-water change can shift corrosivity fast. If corrosion control does not adjust proactively, the downstream effects show in metal release and public exposure. Wolf stresses the distinction between the technical problem and the political challenges, then points to corrosion control as a solvable technical matter when it is treated as a system condition—not a single asset issue.
Why “phosphate-only” isn’t the end of the story
Trace frames what most operators recognize: many municipalities use phosphate inhibitors to form a tenacious film and reduce corrosion. Wolf argues phosphates are “a little bit of old news” in practice and explains the approach Great Water Tech discusses with their German partners—using phosphates and silicates together in the right amounts to create a tighter separation between water and metal.
Barriers, biology, and the disinfection tradeoff
Wolf breaks corrosion drivers into three sources: chemical, biological, and electrochemical (dissimilar metal corrosion). He also ties corrosion to cascading operational decisions—especially disinfectant strategy. If residual loss pushes a system from chlorine to chloramine, Wolf warns that corrosivity can increase dramatically, and that corrosion can amplify the formation of disinfection byproducts as chlorine reacts with what is in the water.
What industrial water treaters should listen for
Pat connects the same barrier logic to industrial priorities—CapEx, OpEx, and lifecycle extension in closed systems (cooling towers, closed chilled loops, boilers). Wolf clarifies that closed systems require different product “flavors,” while keeping the core concept consistent: the combined silicate/phosphate approach remains the best path he is aware of.
Listen to the full conversation above. Explore related episodes below. Stay engaged, keep learning, and continue scaling up your knowledge!
Timestamps
02:20 - Trace sets the tone for the episode: decision-quality improves when you “rethink the way that you think you know things,” especially around tests and procedures
08:20 - Words of Water with James McDonald
11:00 - Upcoming Events for Water Treatment Professionals
18:22 - Interview with Pat Rosenstiel, CEO of Great Water Tech & Wolf Merker, Chief Science Officer of Great Water Tech
23:00 - Flint technical breakdown
27:30 - Corrosion control options
32:20 - Scale vs. Corrosion
43:40 – Algae Control Pivot
Connect with Pat Rosenstiel
Website: Great Water Tech | Water Treatment Solutions
LinkedIn: https://www.linkedin.com/in/pat-rosenstiel-a148952/
Great Water Tech LLC: Overview | LinkedIn
Connect with Wolf Merker
Website: Great Water Tech | Water Treatment Solutions
LinkedIn: https://www.linkedin.com/in/wolf-merker-a1b95284/
Great Water Tech LLC: Overview | LinkedIn
Guest Resources Mentioned
NSF/ANSI/CAN 60 — Drinking Water Treatment Chemicals: Health Effect
NSF — Drinking Water Treatment Chemicals Certification (NSF/ANSI/CAN 60) (how certification works)
ANSI Webstore listing (official standard access/purchase)
EPA — Lead and Copper Rule (regulation hub)
EPA — Lead and Copper Rule Improvements (LCRI) (final rule page)
EPA fact sheet — Tap Monitoring Requirements (LCRI) (sampling protocol changes)
Folmar (Great Water Tech) — corrosion inhibitor (phosphate + silicate blend)
Algae Armor (Great Water Tech) — nutrient-binding tool for ponds/lakes
Historical context for silicate–phosphate combinations
Scaling UP! H2O Resources Mentioned
AWT (Association of Water Technologies)
AWT Technical Training (March 2026)
Scaling UP! H2O Academy video courses
Ep 422 Inside the Association of Water Technologies with John Caloritis
Words of Water with James McDonald
Today's definition is the smallest functional unit of a cooling tower that contains its own heat exchange section, fan or air-moving system, water distribution system, and drift eliminators.
2026 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.
