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A continuous fill system shall be provided so that the unit <br />may be hooked directly to a hydrant. <br />The water tank shall come supplied with a "Y" pattern <br />stainless steel strainer to filter the water before it enters the <br />tank. <br />The water tank shall carry a lifetime warranty against <br />corrosion or cracking, <br />The water supply to the pump shall allow dumping of the <br />debris tank and operation of the water pump while in the <br />full dumped position. <br />Vacuum Dual stage centrifugal compressors capable of 0-8000 cfm, <br />System: Both vacuum and rodder system shall be driven from chassis <br />engine, single engine designed. Units using two engines are <br />not preferred. <br />Three (3) vacuum relief valves shall be built into the vacuum <br />system to maintain high negative pressure. <br />Air vacuum system shall have an air actuated vacuum relief <br />valve that allows vacuum relief at suction tub while <br />maintaining free air flow through the positive displacement <br />vacuum pump. <br />The positive displacement blower shall carry a five (5) year <br />manufacturer's warranty. <br />Engagement and disengagement of the air vac system shall <br />be performed at the operator's station and/or from inside the <br />cab. <br />One vertically mounted stainless steel micro -strainer in a <br />centrifugal separator shall be incorporated between the <br />exhauster and debris tank. The vertical mounting shall allow <br />the settling of contamination out of the main airflow. <br />Manufacturer to supply most current air filtration design. <br />The vacuum system shall operate independently and/or <br />simultaneously of the water pump system. It shall be capable <br />Ver. 2 — March 2018 <br />