Re: T-shirt Launcher
 

I thought of something else to consider about a PVC barrels and air hammer. On several occasions we have tried to stuff too large a load into our pipe (particularly 3" footballs in our previous 2-1/2" pipe), and it did not pop out of the end; it some cases it barely rose at all. In this case, the load itself could be the cause of air hammer as it stops the air rushing up from the valve. I believe a rupture of the pipe would be most likely to occur at the supply fitting where the air speed is greatest. Here, the pressure would not be relieved by the load moving clear; all of it would be used in creating moving pieces of PVC.