thankyou so much i will go and buy some aldrite do they sell it in the uk?

cheers mate will have to try have you got any pictures of a cannon you've made in this fashion?

no but have with similar products do you have any pictures of how you did it?

Bassically I'm new to these forums (first post : :roll: ) I have made a cannon out of 15mm pvc connected directly to a ball valve with a 15 to 22 converter which fits quite snugly on the inside of the 500ml drinks bottle. I can fit everything together perfectly air tight except for the schrader valv...