Hackett demonstrates an acid bath method to remove toxic galvanization from steel in order to prepare it for welding. Galvanized electrical conduit is a readily-obtainable building material, but welding it releases gaseous heavy metals. Removing galv from the areas you wish to weld is easy with a little muriatic acid, water, and baking soda.
These videos are made together by Hackett, Director of the Madagascar Institute and star of TV’s “Stuck with Hackett,” and Becky Stern, DIY video guru. Subscribe for more: http://www.youtube.com/bekathwia