The Vacall versatility advantage MidMountain used its Vacall AllJetVac 1215 model with an optional hydro excavation package for the project, which involved digging a three-foot by three-foot hole, 16 feet deep, to install a traffic light pole. v This combination jet-vac machine is primarily designed to break up blockages and maintain sewer lines, using up to 3000 psi in jetting power with an excellent positive displacement vacuum blower. Equipped with a 1,500-gallon water tank for sewer cleaning, the versatile MidMountain machine also was equipped with an independent 10 gpm @ 3000 psi water pump as part of its hydro excavation package. v Because of the complexity of underground utilities, it was not practical to use an excavator or backhoe to excavate the narrow, deep hole, making

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