Removing accumulated sand, grit and other debris from tanks, pipelines and other infrastructure at wastewater treatment plants without the hassle and expense of bypass pumping or taking facilities offline — and doing it with just one stand-alone vehicle — might seem like mission impossible. But it’s standard operating procedure for U.S. Submergent Technologies (also known as USST), a company that’s using proprietary technology to establish a beachhead in the wastewater-service industry.
The technological secret sauce that allows the Winter Park, Florida-based company to operate this way? Nine so-called Combination3 (as in “Combination Cubed”) vacuum trucks that the company engineered to more
