Acorn Engineering has introduced the AcornVac vacuum plumbing and waste removal system for correctional facilities. AcornVac is an engineered system that uses differential air pressure to transport waste from plumbing fixtures, such as toilets, urinals, sinks and showers, through a piping network to a vacuum center for eventual discharge into the facility's sewer or waste treatment plant. www.acornvac.com Acorn Engineering.