problems with sprinkler valve

[jmc21986]

hi, so i made a pneumatic cannon with a sprinkler valve and i am on my second valve now. the first one leaked so i replaced it and the second one worked good for about 2 weeks and started leaking. i dont know why its doing this or what causes this but i'm getting very frustrated with it. i did not modify it, and im useing it electronicly through a project box. please helping me with troubleshooting my problem. thanks

[jrrdw]

Air is leaking from where? Exactly?

[mattyzip77]

Your first problem is you didnt modify it... Your second problem is you gave us no info to help you whatsoever.....post some pics too. It's better if we can see what's going on....

[jmc21986]

ill get a pic for you. its leaking out of the valve. when i fill the chamber i here the air leaking through the barrel. the reason i didnt modify it is because i saw some videos on you tube of people useing there sprinkler valve electronically.

[PaperNinja]

Idk about sprinkler valves, but with QEV they always leak before a certain pressure. If you're testing it at very low pressures (<20 psi) then it might very well leak.

[jsefcik]

need more info here, then we can help you more