Over the weekend I replaced the standard 3 foot 1.5 inch barrel on my cannon with a 7 ft barrel, and mounted it on a wheeled stand so that it seems more like a Howitzer than a potato cannon. Unfourtunatley, It had dismal results. Could this be due to the new barrel? I also think it may be due to the tank, which is only about half the length at 43 inches by 2 inches wide. Also, latley, my unmodded sprinkler has been honking like crazy. Could the pilot valve be causing the pathetic shots?.
p.s I am operating at around 70 psi
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jrrdw
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If i'm correct, the honking comes from slow opening valve. If that is the case, then yes it will cause weak shots. Look in the Pneumatic Cannon forum, there is a lot of post and replys about that very problem.