Team Magnation


Magnation Water Technologies was born out of inspiration to help farmers solve their complex water challenges with environmentally respectful, innovative, cost-effective technologies. With a constant emphasis on providing great products, exemplary service and honest answers, Mike and Stef Jenzeh have been the engines behind Magnation since 2008.

Magnation is dedicated to promoting environmental health and safety by helping water consumers around the globe improve the quality and productivity of water with scientifically-proven and data-backed, environmentally-friendly, chemical-free water treatment devices.

We are passionate about water conservation through improved water productivity, reducing chemicals, and energy consumption with top-quality products made in the United States. Read our customer's experiences.


Magnation water treatment products serve a variety of industries around the world, supporting agriculture, golf and sports turfgrass, horticulture and landscape businesses by addressing issues including limited water supplies, unusable well water, unproductive soil, hard water, and mineral scale buildup. Our family of products also includes home water treatments and solutions that improve hydration for people and animals.

Magnation Water Technologies is located in the Bay Area near the Port of Oakland at 660 4th Street, Oakland, CA 94607

Our hours of operation are Monday - Friday from 8am -4pm PST.

Mike Jenzeh | CEO & President

In 2008, Mike Jenzeh co-founded Magnation Water Technologies with a single purpose in mind – to help farmers solve their complex water challenges with innovative, cost-effective technologies. With a constant emphasis on providing great products, exemplary service and honest answers, Mike has helped grow Magnation from a tiny, windowless office into one of the largest, most trusted names in commercial and residential irrigation solutions. Today, Magnation’s water-wise irrigation devices are heavily used on many major farms and sports arenas across the United States and internationally.

Prior to founding Magnation, Mike spent ten years in commercial real estate and seven years abroad manufacturing products for Nike, Apple, Macy’s and Cisco Systems.

He is a graduate of Roosevelt University with dual degrees in Philosophy & International Relations and an honorable veteran of the United States Army, 82nd Airborne Division, Fort Bragg, North Carolina.

Stef Jenzeh | Creative Director & VP Marketing

Meeting hot deadlines is nothing for this former USDA Wildland Firefighter.

After 13 years in firefighting, advertising design and website development, Stef joined Mike's vision in 2008 to found Magnation and head up its young, fledgling marketing department. From our first product brochure through the top-to-bottom corporate re-brand in 2012, Stef has led the charge in educating consumers about chemical-free water systems that promote not only water productivity, but also environmental health and safety.

Prior to taking the helm at Magnation, Stef owned her own graphic design and web development firm since 2000, and helped develop many successful marketing campaigns for small businesses to large corporations including Cox Communications, St.Regis, Taylor Woodrow Homes, The Easton Development Company, Windemere Real Estate, Sagent Wealth Management, and The Grove in Los Angeles.

She is an alumna of Collins College and postgraduate at UC Berkeley, Extension. She is a proud mom of 4 children, including a current member of the United States Coast Guard.

Andrei Bargaoanu | Product and Finance Manager

Although Andrei is chiefly responsible for bookeeping and customer service, it’s not uncommon to find him meeting new customers and demonstrating Magnation water treatment technologies at various tradeshows around the country. That’s because Andrei has years of experience in both geological reporting and technology sales. This unique professional background makes him ideally suited to understand soil concerns and present ways modern science can help solve some of those problems.

Andrei is a long-time resident of Northern California and holds a B.A. from of the University of California, Berkeley.

Mike Cohn

Mike Cohn | Sales Manager

Born and raised in Oakland, and with over 40 years experience cheering the Oakland A's, few can match Mike Cohn's passion for talking sports and helping forward sustainable products that make economic sense.

Driven by travel and with a background in economics, Mike has managed international shipping and logistics for the import/export industry, worked in software solutions and wireless networks in Silicon Valley, as well as eight years in corporate finance for the banking and leasing industry before joining Magnation in 2016.

He is a proud dad of two girls and still manages to hit every A’s game.

Doug Anthony

Doug Anthony | Inside Sales

Since 2008, Doug's passion for the environment and sustainability inspires his reach into water and resource conservation, waste reduction, energy efficiency, and green building. His inner fire burns at the intersection of energy and water use for sustainable agriculture.

With over ten years of experience as a Sales and Business Development professional and a keen eye for identifying market challenges, evaluating alternatives and implementing cost-effective, environmentally-sound solutions to effectively reduce waste and conserve natural resources, Doug has been a boon for commercial, industrial and agriculture industries, both large and small.

Doug has served on the board of directors for the Northern California Recycling Association (NCRA), and volunteered with ecological restoration projects to establish native plants and improve riparian corridors for watersheds in Northern California.

Prior to his experience in sustainability, Doug was in the high tech industry as a sales leader for Oracle, and Vicinity Corporation.

Jerry Todd | Outside Sales, Central California

Jerry has a rich background of experience in new and practical methods for stewardship related to the clean and economical application of water, energy and environmental technologies.

Cross discipline experience comes as an asset, as often problems solved in one field are applicable in others. Over the years of entrepreneurialship in the field of engineering, Jerry possesses a wealth of technology applications from developing water treatment (Ozone/UV) units, developing magnetic technologies many years ago with successful results in irrigation and swimming pool applications, to controlling scale formation via a catalyst methodology termed "Epitaxial Nucleation", to a patented vortex technology for cleaning the air and measuring the flow of gases such as hydrogen, to impressive bioremediation in oil spills, and even solving production problems with asthma inhalers in the pharmaceutical industry. Relative to Magnation's mission, Jerry's experience bolsters the focus of expertise and professionalism Magnation represents.

If you don't see Jerry romping around his native Central California locale in Bakersfield, you can find him at an International Center for Water Technology at Fresno State University event as he has been an active member since 1996. ICWT is a public-private partnership dedicated to the development and application of advanced technologies that enhance water use for urban, environmental and agricultural purposes.