i have a question
if you fill a chamber with some gas, then pump in some air, then ignite the gas, trapping the gas with a ball valve, then flip the ball valve, would the ball valve hold the pressure or would it leak?

thanks zeus
im sure to use your advice on my next cannon
- Captain Random

do you need the sprinkler valve with the blow gun?
or could you just leave the blow gun by itself
im going to build a spud gun so i need to know quick

looks cool
i want one bad