How To Make A High Power Air Cannon - 2" Piston Valve (Barrel Sealing)

In this video I build a high power air cannon using a PVC piston from my previous video (seen here):    • How To Make PVC Pistons For Air Cannons, V...   In case you're wondering how this cannon valve operates, I demonstrate the internal function at the 5:35 mark in this video. The sprinkler valve I use at the end of the video was modified as shown here:    • How to Make an Explosion Simulator   Check out my Patreon page and if you like my projects a contribution would be awesome! Link:   / nighthawkprojects   Special thanks to my top Patrons! Syniurge, Matthew Leitzke, & TheBackyardScientist! Music: Sam Davies - Northern Lights (Original Mix)    • Sam Davies - Northern Lights [Silk Music]   (Provided by Silk Music) Thanks for watching!