ive shortened the chamber and now get 150psi from one bulb.
results have been improved.

soda bulbs are available at the supermarket near me, and there not too dear.

well im getting 100psi out of one bulb atm.
im thinking maybe up to 200 psi would be safe?

close up of chamber and trigger.

This is my First attempt at a Soda Cannon.
After making one or 2 pneumatics i began thinking of ways i could load it without the aid of a compressor.

After purchasing a cheap bike pump and only being able to reach about 50-60psi, I abandoned that idea.

Below are images of my Soda Cannon.
I have ...