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February 25-28, 2025 2025 Technical Training Seminars (West) Doubletree Mission Valley San Diego, California November 12-15, 2025 2025 Annual Convention and Exposition The Broadmoor Hotel Colorado Spring, Colorado September 16-19, 2026 2026 Annual Convention and Exposition Oklahoma Convention Center and Omni Hotel Oklahoma City, Oklahoma

Have you ever been stuck in the field with a question? Reluctant to call someone on something you should know? AWT has the resource you’ve been looking for.

1300 Piccard Drive, Suite LL 14 Rockville, MD 20850 Phone: (301) 740-1421 Fax: (301) 990-9771 Contact Us

Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with older versions of the amazing SketchUp Make and the newer "up to date" SketchUp Pro . Add the Engineering ToolBox extension to your SketchUp Make/Pro from the Extension Warehouse !

If you want to promote your products or services in the Engineering ToolBox - please use Google Adwords. You can target the Engineering ToolBox by using AdWords Managed Placements.

With great educational sessions, networking opportunities, and a dynamic exhibition hall, you won't want to miss the 2024 convention!

Note that in an open expansion tank fresh air is constantly absorbed in the water and tends to corrode the system. Open expansion tanks must also be located above the highest heating element, in general on the top of buildings, where they may be exposed to freezing.

We work daily to support our members and provide them with the tools they need to succeed and grow their careers and their businesses — training, certification, networking, and regulatory and public awareness programs.

Expansion tanks are required in heating, cooling or air condition system to avoid unacceptable increases of system pressures when water expands during heat-up.

Get the industrial water treatment skills you need to effectively advance your career with AWT's 2024 Training Seminars and be seen as an industry leader.

The Association of Water Technologies (AWT) is the international water treatment association representing over 500 companies that specialize in applying water treatments for industrial and commercial cooling and heating systems.

Calendar of Events all events February 25-28, 2025 2025 Technical Training Seminars (West) Doubletree Mission Valley San Diego, California November 12-15, 2025 2025 Annual Convention and Exposition The Broadmoor Hotel Colorado Spring, Colorado September 16-19, 2026 2026 Annual Convention and Exposition Oklahoma Convention Center and Omni Hotel Oklahoma City, Oklahoma