Weftec 2025 Conference. Weftec®, the water environment federation’s annual technical exhibition and conference, is the largest conference of its kind in north america and offers water quality professionals from. Weftec is where networks expand, ideas become solutions, and water quality innovation and expertise are on display.

Mccormick place convention center chicago, ill. Weftec is where networks expand, ideas become solutions, and water quality innovation and expertise are on display.