In this video I fire a new vacuum cannon made from clear PVC pipe and test a few of your ideas from my previous video. Check out my Patreon page and please support my videos if you can! https://www.patreon.com/NightHawkProjects Special thanks to my top Patrons! Syniurge, Matthew Leitzke, & TheBackyardScientist! This cannon makes use of my PVC piston made in an earlier video: https://www.youtube.com/watch?v=BCZGWvieJ7I Here are my previous vacuum cannon videos if you missed them: Building A Piston Actuated Vacuum Cannon: https://www.youtube.com/watch?v=9ydJXOTf1-4 Building A 4" Bore Vacuum Cannon: https://www.youtube.com/watch?v=cDoUBJbyZ-8 And my very first vacuum cannon video from many years ago: https://www.youtube.com/watch?v=CVL99yIB3NQ Thanks for watching!