HSI Water is a water treatment company that has been serving customers since 1955, delivering practical, reliable solutions to complex water challenges.
Built on a foundation of technical expertise and strong customer relationships, the company has earned a reputation for dependable systems, responsive service, and a commitment to solving real-world problems.
At its core, HSI Water is committed to practical innovation, trusted partnerships, and water solutions that benefit the world.
Over the decades, HSI Water has focused on providing effective treatment solutions that help customers manage water quality, improve system performance, and operate more efficiently.
Now, with Derek Gonseaux and Jake Manchaca joined with pioneer Terry Gong and legacy family John Harmon, HSI Water is expanding to bring additional operational, commercial, and strategic leadership to the business. Together, the leadership team is focused on strengthening HSI Water’s core services while expanding the reach and capabilities of its technologies.
A Legacy of Water Innovation
Today, HSI Water is actively exploring innovative, real-world applications for advanced water treatment, including solutions for:
By combining proven systems with practical field experience, the company works alongside customers to turn complex water challenges into reliable, sustainable solutions.
AGRICULTURE
GOLF COURSES
VINEYARDS
Serving Customers Since 1955
Global Installations
2,000+
Systems Installed
Sulfur materials vary significantly in quality, purity, and form, which can lead to operational issues such as plugging, reduced burn rates, lower efficiency, and premature corrosion.
For optimal performance and equipment longevity, we recommend using OMRI-listed HSI 99.9% pure pastille elemental sulfur. Store sulfur dry, never use wet material, and always follow MSDS safety guidelines.
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