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SYSTEM OPERATION AND MAINTENANCE
Material Handling Hose
The supplied 4" smooth bore hose is ideal for most applications of this system. Call the factory if you have a mud or water pumping application. The shorter the material handling hose (FLEX) the better. We recommend that 8 to 10 feet of flex hose be the maximum if at all practical. Gulper tube is best made of schedule SDR35 PVC sewer pipe. Schedule 40 pipe is too heavy and is difficult to maneuver, while schedule 10 pipe is too flimsy and will collapse under the vacuum. Aluminum pipe works very well as gulper tube, but is not very durable and is expensive when compared to plastic. Gulper tube can be extended to 20 feet or more by using the bell connections as the application demands. For valve box cleaning applications, you may find that 3" gulper fits into the valve better. If you use smaller gulper tubes you should also use smaller flax hose.
NEVER OPERATE THE UNIT WITHOUT A CATCH BAG IN PLACE !.
The VP850 vacuum pump is supplied with a Catch bag. This bag must be used at all times to prevent possible injury or death from material which might pass through the vacuum generator if the hopper is over filled. There are many types of exhaust bags available depending upon your application. For most outdoor vacuuming, a mesh bag is a good choice. If you are concerned about fine dust, custom bags are available in available in many micron ratings.
Figure 7 - Installing the exhaust bag.
Figure 8 - Release the latch and lift the clip.
These exhaust bags can be rinsed and reused many times. For applications where vacuuming must be done in an enclosed area, it is necessary to duct the Ultilivac® exhaust outside. The VP850 pump was designed to allow standard 8" exhaust duct to be attached to the exhaust end. This 8" exhaust duct is available in 25' sections from the factory or your local hose supplier.
