The big truck, the Vortex, is 12 years old and still purring like a kitten. About 11 different employees have operated it, some much more than others but they all have delivered phenomenal results with such a great tool. Thanks FMI in Portland, OR for your craftsmanship in building it in the winter of 2005. Thank you too, customers, for entrusting Dryex to make your world just a little better!