You don’t need any of that chemical nonsense to just have fun, though, as this compressed air cannon from [OtisLiu153] demonstrates. The build uses PVC pipes for both the barrel and the air tank.

Using PVC pipe as a pressure vessel for compressed air can be a fun and enjoyable hobby. It’s safe, too: while there are are reports of PVC pipe being the cause of accidents, these accidents ...

compressed air storage systems and compressed air dryers. The compressors' extensive piping system allows for highly variable operation – in suction mode, cycle mode or compression mode – depending on ...