Water-jet vacuum pump
thingiverse
I built a water-powered vacuum pump to eliminate air pockets. It's not extremely strong, but it does the job. I can visualize the inflation of a balloon within a tightly sealed case. To build this pump, you'll need a water tube (10mm inner diameter), an air tube (6mm outer diameter), a valve, some glue, and other connecting materials. The vacuum pump consists of two main parts: the nozzle and the body. These components must be combined and their connection securely sealed. Every joint requires attention to ensure a leak-proof setup.
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