Beating it with a rock will not expel the air, putting underwater will. If you make up a venturi system off your water tap it will also suck the air out of bag.
Type: Posts; User: Spook
Beating it with a rock will not expel the air, putting underwater will. If you make up a venturi system off your water tap it will also suck the air out of bag.
Push bag of whatever product under water without water entering opening...vacuum packed...cheep as chips vacuum packer.