Water-jet vacuum pump

This is a vacuum pump that powered by waterworks pressure.

I designed it for removing bubbles. It's not powerful, but works. I could see a balloon inside lock case were expanded.

Water tube( inner diameter 10mm), air tube( outer diameter 6mm), valve, glue and some items for connecting are needed.

This pump is divided into nozzel and body, And they should be joined and the joint should be sealed. ( every connections also )

Good luck ;D