Coming soon will be a section devoted to doing everything with spud guns, from pneumatic to combustion. Plans include: General information such as pressure ratings, scheduled sizes and dimensions Solvent Welding PVC pipes The Ultimate Sprinkler Valve Modification Guide for Orbit Watermaster 57000 series sprinkler valves 1" and 3/4" Simple Combustion Do-It-Yourself Simple Pneumatic Do-It-Yourself and much much more, so stay tuned, bookmark this page!