PVC Venturi Vacuum Pump and Radiator Coolant Refill

Figure 1

Step 1: Vacuum Gauge Showing Maximum Vacuum Pulled (Vacuum Is 29.92 InHg)

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Step 2: Venturi Nozzle Simulation

Figure 3

Step 3: PVC Venturi Pump With Air Baffle

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Step 4: Venturi Pump

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Step 5: PVC Venturi Pump Schematic

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Step 6: Exhaust Nozzle View

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Step 7: Parts Layout

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Step 8: Nozzle Assembly

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Step 9: Exhaust Nozzle Insertion Into Small Diameter Exhaust Tube

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Step 10: Exhaust Assembly and Nozzle Chamber Allignment

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Step 11: Instructions Part I

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Step 12: Instructions Part II

Figure 13