Waterjet Technology Basics & Beyond Short Course

The Basics & Beyond Short Course offers an applied introduction to the technology and practical applications of waterjets and related equipment.

The couse is intended for anyone with an interest in waterjet technology, ranging from first-time users and new employees to those seeking to increase their level of knowledge, including field techs, suppliers, support staff, engineers, marketing personnel, researchers and potential new users.

The Basics & Beyond Short Course is limited to "Combo" and "Pre-Conference Workshop" registrations.

Schedule of Events

Monday, November 11

8:00 a.m.–8:05 a.m.

Welcoming Comments & Introductions

8:05 a.m.–8:30 a.m.

Waterjet Technology: Introduction & History (session details)
David Summers, Ph.D., Missouri University of Science and Technology (MS&T)

8:30 a.m.–9:00 a.m.

Applications of Waterjet Technology (session details)
Darrell Terpenning, NLB Corp.

9:00 a.m.–10:00 a.m.

Equipment Considerations (session details)
Hugh B. Miller, Ph.D., Colorado School of Mines

10:00 a.m.–10:15 a.m.


10:15 a.m.–11:15 a.m.

Occupational Safety & Health (session details)
Gary Toothe, FS Solutions

11:15 a.m.–12:00 p.m.

UHP & Abrasive Cutting Applications (session details)
Mohamed Hashish, Ph.D., Flow International Corporation

12:00 p.m.–1:00 p.m.


1:00 p.m.–2:00 p.m.

Cleaning Applications (session details)
Jeff Hensley, StoneAge, Inc.

2:00 p.m.–2:30 p.m.

Field Cutting Applications (session details)
Bill McClister

2:30 p.m.–3:00 p.m.

Coating and Corrosion Removal & Surface Prep (session details)
Lydia Frenzel, Ph.D., Advisory Council

3:00 p.m.–3:15 p.m.


3:15 p.m.–4:00 p.m.

Robotics and Automation (session details)
Terry Gromes Jr., Terydon, Inc.
Hans Borgt, The Dow Chemical Company

4:00 p.m.–4:30 p.m.

Sewer Cleaning (session details)
Dana M. Hicks, ENZ USA Inc.

Session Details

8:05 a.m.–8:30 a.m.
Waterjet Technology: Introduction & History – David Summers, Ph.D., Curators' Professor Emeritus of Mining, Missouri University of Science and Technology (MS&T)

  • Water use in mining from Jason and the Argonauts, through the Romans, to use in California and Russia
  • Cutting harder rock, higher pressure development and its use in industry, the advent of abrasive waterjets and the advent of abrasive slurry jets
  • Robotic use and dangerous applications, combinations and the future potential including cavitation

About the Speaker

After working in the British National Coal Board and getting degrees in mining at the University of Leeds, Dave Summers went to what is now the Missouri University of Science and Technology (Missouri S&T, formerly the University of Missouri-Rolla) to lead a team to develop waterjet cutting and use. As a result, he was there when abrasive jets, hydro-demolition, hydro-excavation and other now common uses were being developed. With recognition for the group becoming international and leading to several awards, Dave is also proud to have been one of the founding members of the WJTA.

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8:30 a.m.–9:00 a.m.
Applications of Waterjet Technology – Darrell Terpenning, Vice President Sales, NLB Corp.

  • How waterjets are used
  • Rotary hand lances
  • Automated systems
  • Variety of applications

About the Speaker

Darrell Terpenning joined NLB Corporation in 2013 as the vice president sales at NLB Corporation covering the United States and Canada. He received his bachelor's degree from Cedarville University in 1986. Darrell started his career as a contractor focused on cleaning automotive paint shops both domestically and internationally. In 1999, he joined an industrial services contractor based in the Midwest expanding his experience into new applications. From 2001 through 2012, Darrell led the sales and operations for a major filtration supplier to industrial plants.

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9:00 a.m.–10:00 a.m.
Equipment Considerations – Hugh B. Miller, Ph.D., Associate Professor, Mining Engineering Department, Colorado School of Mines

  • Fundamentals of equipment selection
  • What matters and why
  • System design configuration
  • Nozzle design and selection

About the Speaker

Hugh Miller is an associate professor in the Mining Engineering Department at the Colorado School of Mines (CSM), where he teaches courses and conducts research in a variety of specialized areas including waterjet technology and hydroexcavation, excavation engineering, and occupational safety. Prior to entering academia, Hugh worked 13 years for several mining and engineering companies in capacities ranging from operations to management, including five years as director of operations for International Engineering Technology, Inc. and its waterjet research subsidiaries, where he oversaw projects related to equipment development and waterjet technologies associated with mining, civil-construction, and drilling systems. With more than 25 years of experience related to waterjet technology and hydroexcavation, he has served on the boards of several companies and professional organizations, including WJTA. Hugh is currently serving as the president of the Society for Mining, Metallurgy & Exploration (SME), a global professional organization devoted to mining and heavy underground construction.

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10:15 a.m.–11:15 a.m.
Occupational Safety & Health – Gary Toothe, CET, Training Manager, FS Solutions

  • Waterblast safety is integral to both productivity and quality on all waterblast projects
  • Scientific basis to all waterblast rules/best practices
  • Other safety standards become even more critical when waterblasting
  • Automation has the potential to significantly reduce employee exposures, but only when the entire system is inspected and proven to be safe

About the Speaker

Gary Toothe is a board-certified Environmental Safety and Health Trainer through the Board of Certified Safety Professionals (BCSP). He holds a Bachelor of Science degree from the University of Georgia and a premier certificate in occupational safety and health from the Georgia Institute of Technology. Gary is a member of the WJTA and sits on both the WJTA Waterblast and Vacuum Safety Committees. Gary received the WJTA's 2009 Safety Award and shared the 2016 Safety Award. Gary is also a member of the National Environmental, Safety & Health Training Association (NESHTA) and sits on their board of directors. Gary has been in the industrial contracting field for over 33 years, the last 17 plus in safety and training. Gary is an OSHA authorized outreach trainer in both construction and general industry and an NCCER master trainer. Gary has developed numerous training programs and has been a featured presenter at waterblast safety conferences worldwide. Gary began as a rookie technician working his way up to foreman in the field before moving into management. In that capacity he developed innovative plans for shutdown management, planning and execution in industries including: nuclear, paper and pulp, plastics manufacturing, shipyard services and many others.

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11:15 a.m.–12:00 p.m.
UHP & Abrasive Cutting Applications – Mohamed Hashish, Ph.D., Senior Technology Fellow, Flow International Corporation

  • Introduction to UHP technology showing different pump systems and components and the relationship between UHP parameters
  • Jet formation techniques and comparison with a focus on abrasive waterjets and operational characteristics
  • Basic attributes of cutting features produced by waterjets and how these attributes are affected by the process parameters
  • Examples of waterjet systems for different applications
  • Machining applications such as cutting, drilling, milling, turning and surface preparation and upcoming challenges

About the Speaker

Mohamed Hashish is a senior technology fellow at Flow International Corporation. He graduated from the Mechanical Engineering Department, Alexandria University, Egypt, in 1970 and obtained his Ph.D. in mechanical engineering from Concordia University in 1977. In 1980, Mohamed invented the abrasive waterjet process for cutting any material, and he continues to work on this technology today. Mohamed serves as an affiliate professor at the University of Washington, and he has published over 350 papers and 50 patents in the areas of UHP and waterjet.

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1:00 p.m.–2:00 p.m.
Cleaning Applications – Jeff Hensley, Technical Solutions Manager, StoneAge, Inc.

  • Planning and selecting the best waterjet for your application
  • Understanding pressure and flow in material removal
  • Understanding pressure loss, both before the water leaves the nozzle and after the water leaves the nozzle
  • Benefits of automated equipment

About the Speaker

Jeff Hensley came to StoneAge Waterblast tools in 1995 and has since worked in all aspects of the business, including manufacturing, assembly, quality control, repairs, sales and customer support. In his current position as technical solutions manager, Jeff provides training across all product divisions and safety procedures for StoneAge. As "hands-free"automated equipment grows more sophisticated, Jeff has developed a leading role in training others to safely set up, operate and maintain these powerful tools.

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2:00 p.m.–2:30 p.m.
Field Cutting Applications – Bill McClister

  • Components necessary for field cutting
  • Advantages of waterjet cutting
  • Commonly used abrasives
  • Hazards, including fire or explosion
  • Applications and case studies

About the Speaker

Bill McClister is an industry consultant. He is the former vice president of support services at Veolia North America, and he was employed there for over 36 years. A large portion of Bill’s career was spent developing advanced tooling and accessories to support Veolia's waterjet cleaning activity. Bill played a major role in introducing UHP waterjet cleaning and abrasive waterjet cutting technologies to industrial applications. In 1987, Bill directed the waterjetting activity involved in the rescue of Jessica McClure, the "Baby in the Well." Bill serves on the WJTA board of directors and on the WJTA Safety Committees for High Pressure and Vacuum Equipment.

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2:30 p.m.–3:00 p.m.
Coating and Corrosion Removal & Surface Prep – Lydia Frenzel, Ph.D., Executive Director, Advisory Council

  • Comparison between abrasive blast and waterjet surface preparation
  • Comparison of flash rust, rust back, and rust bloom
  • Surface preparation of concrete - new standard
  • Review of visual guide and methods of testing for flash rust
  • Guidance on cleaning rates
  • Accident statistics (OSHA) reported for water blasting compared to dry abrasive blast

About the Speaker

Lydia Frenzel is the director of the Advisory Council, Vancouver, Washington. She is a recognized authority in the field of surface preparation using waterjetting and water/abrasive blasting. Since 1985, she has co-chaired the Society for Protective Coatings/National Association of Corrosion Engineers (SSPC/NACE) committees on waterblasting. She received the Journal of Protective Coatings and Linings (JPCL) Most Influential Persons in Coatings Award (2004) and the SSPC Technical Achievement Award in 1996 and 2012. She was recently honored with the SSPC's 2014 John D. Keane Award of Merit, which acknowledges her outstanding leadership and significant contributions to the development of the protective coatings industry and to SSPC. In 2015, Lydia received the 2015 WJTA-IMCA Pioneer Award, the highest recognition and honor presented by the association. The award acknowledges her significant contributions to the advancement, development and application of waterjet technology for surface preparation and coating removal. Lydia serves on the WJTA Safety Committee for High Pressure, and she served on the WJTA board of directors from 1995 to 2007. Lydia combines her passion for the WJTA with activities in the SSPC and NACE International and represents the USA position in coatings and varnishes to the International Standards Organization (ISO) Technical Committee 35 (TC 35).

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3:15 p.m.–4:00 p.m.
Robotics and Automation – Terry Gromes Jr., Automation Specialist/Product Support, Terydon, Inc., and Hans Borgt, Technical Associate Industrial Cleaning in the Technical Expertise & Services Technology Center, The Dow Chemical Company

  • An overview of robotics and automation in various applications that utilize waterjetting
  • How adoption of waterjet automation has met with varying levels of success in different industries
  • The roles and challenges faced by both manufacturers and customers in making automation mainstream
  • Case studies from other industries that have adopted automation and how those lessons can be applied to our industries
  • Case studies from other industries that have adopted automation and how those lessons can be applied to our industries

About the Speakers

Terry Gromes Jr. has acquired his knowledge of waterblasting during his employment at Terydon, Inc., with over a decade of experience. Working in the family business, he has acquired advanced machinist and design skills and has assisted in the manufacturing and development of waterblasting products. With an educated background and previous work experience in technology-driven industries, he has been focusing on recent advancements from other technical fields and applying them to enhance productivity as well as safety within the waterblasting industry. Terry has combined his critical thinking and intense mechanical background to morph the finesse characteristics of electric, mechanical, and computerized solutions to the challenging environments of industrial cleaning. These efforts have enabled the company to develop elite safety equipment; as a result, Terydon was recognized as the recipient of the 2017 WJTA-IMCA Safety Award. Throughout his career, Terry has been invited to speak worldwide and deliver presentations on the importance of safety within industrial cleaning as well as the benefits of integrating new technology into industrial cleaning.

Hans Borgt is globally responsible for industrial cleaning within the Dow Chemical Company, where he is the technical associate industrial cleaning in the Technical Expertise & Services Technology Center. Before joining Dow in 2007 he worked 10 years in the industrial automation space. Hans holds degrees in chemical engineering and in material science. He was the driving force working to non-manual hydroblasting and the introduction of other, new and innovative cleaning technologies to Dow, where the focus besides safety is towards efficiency and quality improvement. Besides his extensive work at the Dow Chemical Company, Hans is a part of the executive board of the Foundation for Industrial Cleaning (SIR) in the Netherlands and Belgium, co-chair of the global industrial cleaning recommendations committee, project lead within the Knowledge and Innovation Center for the Maintenance Process Industry (KIC-MPI), board member of the European Water Jetting Institute (EWJI), and editorial board member of the Heat Exchanger Design Handbook (HEDH). Hans also lectures on Industrial Cleaning at Avans University for Applied Science in Breda.

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4:00 p.m.–4:30 p.m.
Sewer Cleaning – Dana M. Hicks, Sales Manager, ENZ USA Inc.

  • Applications: flushing vs. cleaning
  • UHP cleaning
  • Sanitary sewers and storm sewers

About the Speaker

Dana Hicks has been a sales manager with ENZ USA Inc. for 19 years, and he has been in the sewer and pipe cleaning industry for 25 years. On a daily basis, he travels across the U.S. and Canada performing demonstrations and holding educational sessions for cities and contractors that do maintenance on all pipe sizes that are in a good to very bad condition. Dana received his bachelor's degree from Purdue University. He is a member of the WaterJet Technology Association (WJTA), the American Public Works Association (APWA), APWA Chicago Metro Chapter, Water Environment Federation (WEFTEC), and the National Association of Sewer Service Companies (NASSCO).

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