Thanks, heres my launcher as it stands now. Built out of sch40 PVC, it was completed in March, so its relatively new. I went with a lower pressure/ high volume design for saftey and usually pressurize it to 90-95 psi. My LP Palmer Reg keeps things in check and i have a 125 psi pop off and pressure gauge. Better safe than sorry. But i have one more question? What is a Soap test and how do i do it?