Can I make vacuum seal without the pump?

Hello!
I have this bags

but I don’t have the pump to make the vacuum do you have any idea how can I make vacuum seal? I tried to use with a vacuum cleaner but it dosen’t work…
Thanks!

Haigai, you can remove most of the air from the bags by using water pressure to force air out. You do this by submerging the filled bag with the opening facing up. I will let Kenji show you how it’s done below: