A Homemade Vacuum Pump and Air Pump

It doesn't take much cash or time to recycle an old refrigerator into a homemade vacuum pump and air pump.



067 air pump and  vacuum pump - photo2
The completed air pump/vacuum pump at work inflating a tire.
PHOTO: MOTHER EARTH NEWS STAFF
067 air pump and  vacuum pump - diagram
Diagram shows the parts and assembly method for air/vacuum pump.
MOTHER EARTH NEWS STAFF











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