SpudFiles

Does anybody have any ideas how i can join 3" pvc to a 2 litre bottle? the pipe needs to go where the neck of the bottle is.

and yes i know not to use bottles for chambers but that isnt what this is intended for.

Duct tape or super glue / hot glue.

Also usually can't go wrong with epoxy.

i would use fiber glass.

Would any of the things that have been suggested hold under pressure as it is going to be used for a water rocket that will be using compressed air

epoxy will hold under pressure.