![A Slide-in on a Flatbed Is a Game-Changer for This PRO](https://cole-promonthly.imgix.net/https%3A%2F%2Fwww.promonthly.com%2Fuploads%2Fimages%2Fillinoisportabletoilets_037__large.jpg?crop=focalpoint&fit=crop&fp-x=0.5&fp-y=0.5&h=620&ixlib=php-1.1.0&q=75&w=1024&s=a2799d746856940241eecbee168a7609)
David Gulliford of Illinois Portable Toilets services a portable unit with the company’s flatbed service truck featuring a slide-in tank by Advance Pump & Equipment at Spalding Park in Champaign, Illinois. (Photography by Bradley Leeb)
In 2011, Russ Gulliford had a brainstorm: What if his company, Illinois Portable Toilets in Champaign-Urbana, Illinois, could integrate restroom pickups and deliveries into daily service routes? The entrepreneur had a hunch that this could be accomplished with the right kind of...