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NEW Sizing Calculator!

Engineers and Design Consultants - find the best Stormwater Separator size for your site.

HeadCell / SlurryCup / Grit Snail

The industry leading, high performance grit removal system.

Hydro-Sludge™ Screen

A horizontal in-line coarse material separator comprising an inlet screening zone and a pressing zone.

Find a Solution with 'Hydro Town'

An interactive tool where you can find Hydro's solutions to a wide range of water management problems

An Innovative Flood Control Solution

Hydro International Vortex Flow Controls. Part of Glasgow City’s Council’s $84 million flood prevention plan.
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Welcome to Hydro International

Hydro International offers innovative products for the cost-effective treatment and control of water, wastewater, and stormwater.

Hydro's products use state of the art design to provide optimized solutions for wastewater treatment plants, combined sewer systems, and municipal separate storm sewer systems (MS4s). Hydro products are also well suited for many types of industrial, drinking water, and agricultural applications. Hydro products improve the performance of water and wastewater treatment facilities, control flow quantity, and improve the quality of water.

Through the application of advanced vortex and complementary technologies Hydro International’s line of products provide economical solutions to the challenging problems our clients face.

HX is the essence of Hydro. It’s interwoven into every strand of Hydro’s story, from our products to our people, our engineering pedigree to our approach to business and problem-solving. HX is a stamp of quality and a mark of our commitment to optimum process performance. A Hydro solution is tried, tested and proven.

There is no equivalent to Hydro HX.

Find out more about Hydro HX.


Latest News

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PORTLAND, Maine (August 21, 2015) – Hydro International, a global manufacturer of products for the management and treatment of water, wastewater and stormwater with U.S. Stormwater headquarters in Portland has been named for a second time in three years to the 2015 list of the “Best Places To Work In Maine.”

Latest Events

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22Sep
Louisville, KY. Please visit our exhibit at Louisville MSD’s second annual Field Day, September 22nd at Louisville Water Tower Park, 3005 River Rd Louisville, Kentucky 40207.
25Sep
Madison, WI. Hydro International will be exhibiting its stormwater products and services at Wisconsin ASCE 2015 Annual Meeting being held at the Crowne Plaza Hotel.