The hose and reel assembly is located at the rear on the AllJetVac R Series models, accommodating an operator preference for a quieter operation. Industry-leading vacuum and jetting forces clean and maintain sewer lines using a positive displacement blower design, efficiently controlled with the standard AllSmartFlow CAN bus system. Debris tank capacities of 10 to 12 cubic yards while water tanks can have a 1,500-gallon capacity. The 8-foot, 6-inch extending boom is capable of a 270-degree rotation. SPECS. https://vacall.com/library/literature/ajv-r_combination-sewer-cleaner.pdf