Course Content

• Waterjet history
• Hydraulic mining
• Concrete removal and adding suction
• improving performance – abrasive injection, cavitation, and hydromechanical cutting

David Summers, Ph.D.

Missouri University of Science and Technology (MS&T)

Dr. David Summers has been involved in waterjet research and use since 1965. After working in the British National Coal Board and getting degrees in mining at the University of Leeds, Dave went to what is now the Missouri University of Science and Technology (Missouri S&T) to lead a team to develop waterjet cutting and use. As a result, he was there when abrasive jets, hydrodemolition, hydroexcavation, and other now common uses were being developed. Dave is the Curators Distinguished Professor Emeritus at Missouri S&T, and he helped found the WJTA and served on the board. After retiring, he moved to Maine, where among other things he makes chocolate and computer images.

Course Content

• Industrial cleaning applications
• Industrial process applications
• Surface preparation applications
• Line cleaning applications
• Cutting applications

Darrell Terpenning

NLB Corporation

Darrell Terpenning joined NLB Corporation in 2013 as the vice president of sales covering the U.S. and Canada. He received his bachelor’s degree in business administration, with an emphasis in management and finance, from Cedarville University in 1986. Darrell started his career as a contractor at ARAMARK Industrial Services, focusing on cleaning industrial plants and automotive paint shops both domestically and internationally. He gained experience in various cleaning processes and in developing new processes for both facilities and production components. In 1999, he joined MPW Industrial Services Inc. as the director of labor and support services. At MPW, he expanded his experience into new applications. From 2001 through 2012, Darrell led the sales and operations for Total Filtration Services, starting as the director of automotive, then the director of branch development, and then moving into the position of director of national accounts. At Total Filtration Services he gained additional experience with production applications. Today Darrell leads the sales team for the U.S. and Canada for NLB Corporation, a leading supplier of high pressure waterjetting pumps in industrial cleaning. His focus is on new applications and further developing markets using high pressure water to successfully and sustainably clean or process manufactured components.

Course Content

• Fundamental concepts related to equipment and system selection and layout
• Operating considerations critical to maximizing nozzle performance and efficiency
• Common techniques for gauging system performance

Hugh B. Miller, Ph.D.

Colorado School of Mines

Dr. 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 and occupational safety. At CSM, Hugh is the research director for the Energy, Mining & Construction Safety Center. Prior to entering academia, Hugh worked 13 years in industry, including five years as director of operations for International Engineering Technology, Inc., and its waterjet research subsidiary, IET Jet Technology Inc. With more than 30 years of waterjet experience, he has served on the boards of numerous companies and professional organizations, including the WJTA, and regularly consults in the integration of new technologies and equipment in mining and excavation and applications related to waterjet technology. Hugh has received a combined 17 teaching awards while working at two different universities, was inducted as a SME Distinguished Fellow (2015) and awarded as a AIME Honorary Member (2017). Hugh received his undergraduate and graduate degrees from the Colorado School of Mines.

Course Content

• Easy access to courses, resources, and certifications to appropriately support every individual involved with careful high-pressure waterjetting coordination and execution
• Streamlined project preparation using the safest means and methodology for high-pressure waterjetting applications
• Proactive implementations to strengthen end-user policies
• Enhanced understanding between service provider and service recipient

Frank G. Romito

StoneAge, Inc., WJTA Master Trainer

Frank G. Romito supports the industrial cleaning community specific to hydro-blast operations. Frank influences safe and methodical work practices via training and consulting. Frank provides mechanical expertise and system configuration, conceptual solutions, and component combination knowledge for end-user success. As a WJTA master trainer and program director, Frank facilitates the coordination and delivery of hydroblast certification at multiple levels. Frank and his colleagues are active within several connected industry associations continuing promotion of best practices and best methodology for hydroblasting applications.

Course Content

• Introduction to the UHP technology showing the basics of different pump systems and UHP water physics
• Comparison of jet formation techniques, focusing on abrasive waterjets and operational characteristics
• Basic attributes of cutting features produced by waterjets and how these attributes are handled in modern waterjet cutting systems
• Examples of waterjet applications and systems, including precision deep cutting, drilling, milling, turning, and surface treatment

Mohamed Hashish, Ph.D.

Flow International Corporation

Dr. Mohamed Hashish is a founding member of the WJTA, and he is one of its technology and pioneer awards recipients. He is a Senior Technical Fellow at Flow International Corporation, Seattle, WA, where has been working since 1979. In 1980, Dr. Hashish invented the abrasive waterjet technology, which revolutionized the field of waterjet cutting. He is also honored as an affiliate professor at the Mechanical Engineering Department, University of Washington. Dr. Hashish holds over 60 patents in the fields of jet cutting, surface preparation, and ultra high-pressure technology. He has published more than 320 papers in many journals and conference proceedings, and he edited several proceedings for the WJTA and the American Society of Mechanical Engineers.

Course Content

• Accurately approaching operating parameters based on the foulant’s nature
• Combined effects of pressure and volume upon foulant and equipment configuration
• Most-effective tooling and mechanization selection
• Acceptable pressure-drop and stand-off distance

Frank G. Romito

StoneAge, Inc., WJTA Master Trainer

Frank G. Romito supports the industrial cleaning community specific to hydro-blast operations. Frank influences safe and methodical work practices via training and consulting. Frank provides mechanical expertise and system configuration, conceptual solutions, and component combination knowledge for end-user success. As a WJTA master trainer and program director, Frank facilitates the coordination and delivery of hydroblast certification at multiple levels. Frank and his colleagues are active within several connected industry associations continuing promotion of best practices and best methodology for hydroblasting applications.

Course Content

• Applications
• Safety considerations
• Advantages of using waterjet cutting

Larry Freeman

USA DeBusk

Larry Freeman has been in the hydrocutting business for over 30 years. He currently manages the hydrocutting division for USA DeBusk. Larry is considered a hydrocutting subject matter expert.

Ricky Smith

USA DeBusk

Ricky Smith has been in the industrial cleaning industry for 40 years, and he has been involved in hydrocutting for over 35 years. Ricky is a technical specialist at USA DeBusk. He has started and run multiple cutting divisions in the industry.

Course Content

• Coatings removal compared to industrial cleaning
• Comparison between abrasive blast, wet abrasive blast, and waterjet surface preparation
• What has changed in AMPP and ISO standards since 2019?
• How effective is waterjet cleaning in preventing corrosion?

Lydia Frenzel

WJTA Advisory Council

Affectionately known as “The Water Witch of the West,” Dr. Lydia Frenzel is an authority on surface preparation and has led the SSPC/NACE committees on Coatings Removal by Water Jetting 1985 - 2020 and is a subject matter expert to ISO TC/35 Coatings and Varnishes since about 1997. She bridges the corrosion, paint, and waterjetting industries represented by NACE, SSPC, AMPP, WJTA and ISO. Lydia received the SSPC John D. Keene Award in 2014, the WJTA Pioneer Award in 2015, and the ISO/TC 35 Paints and Varnishes award in 2023 for her professional and devoted contribution to the development of International Paints and Varnishes Standards.

Course Content

• Benefits of hydrodemolition
• Common applications
• Safety practices
• Jobsite planning

Andy Anderson

Conjet

Andy Anderson serves as national accounts manager for Conjet North America. In this role, he provides technical sales and application consulting to Conjet’s existing and new customers in the U.S. and Canada. Prior to joining Conjet, Andy held leadership positions in business development, management and sales and marketing for various companies.

Course Content

• Overview of sanitary sewer systems, and how government regulations drive the way we clean and operate our systems
• Appropriate tool/method for removal of obstructions, roots, grease, protruding service laterals, calcified grease, and mineral deposits, and the variations of mechanical cleaning methods
• Utilizing CCTV to evaluate cleaning methods tooling and frequency of cleaning
• Insight on how ASTM international has recognized the need for cleaning standards that see the inherent differences between pipe materials when cleaning processes are performed

Kent Carlson

National Clay Pipe Institute

Kent Carlson served in the U.S. Navy Submarine Forces as a machinist and subsequently joined the City of Los Angeles where he had a successful career of more than 30 years as a sewer operations manager. His sewer tool and nozzle designs have won state and local industry awards and are currently used by municipalities and contractors nationwide. Kent is a voting member of several sewer related ASTM committees as well as wastewater industry organizations. He has also authored several published ASTM standards, technical papers, and technical manuals. As the vice president of the National Clay Pipe Institute, Kent travels throughout the U.S. as a sought-after conference speaker and educator for municipal wastewater collection staff and engineering groups. Kent has also published research papers, is a regular columnist for sewer industry trade journals, and he has co-authored several sewer engineering manuals and operational guides.