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.

But not [truebassB], instead he built his own air pump from first principles (YouTube, embedded below) using PVC pipe. It’s a straightforward ... We’ve not featured many such simple pumps ...

However, if you find yourself in a bind, we talked to an expert about some simple cold ... Nick's Plumbing and Air Conditioning, said. He knows a thing or two about pipes. "I've been in the ...