how much psi will it hold safly??

i'd say about 10 shots but thats an estimate. Do you have access to a compressor to fil it up ?? if you not you could get a battery or 12volt bicycle pump to full it up with and then you could fill it up on the go to(just hook the punp to your car 12v outlet.)

ok sorry ill edit my posts next time im new here but thanks for the info

or does that mean 6:00 pm

ill be on so does that mean for south carolina 9:00pm??

on my pnumatic i have that exact same valve and i have no problems perhaps you should take it back and exchange it for a new one

ive shot a 2 1/2 pound lug bolt wraped with electical tabe at a board, and it droped short, hit the ground, bouced up spinning insanlyfast and went all the way through my dads airplane hanger wall. i thought he was gunna kill me but instead he thought it was awsome that my cannon had that much power...

hey i was woundering if anyone could give me some ideas on things to shoot ive shot socks, bolts, engine pistons, anything else yall can think of??

mine does that to but ive just learned to ignore it. the weird thing is, is that it honks some times, like it does it after its been sitting a while but after it honks it the first time it quits until i store the cannon for a while

you could use a portable air compressor tank(the kind you fill up with an air compressor and tag along with you) there about60 bucks a walmart if thats what your talking about

is it a sprinkeler valve???

i tried to go to the chat room at least 20 time and nobody was in it i think the eight o clock idea is a good idea