@spiritofmusic
As for hose and fittings, talk to the folks at an industrial air shop. They have connectors with barbs for the hose on one end, and threads on the other. A cost-effective alternative is as Ledoux, our OP suggests: a 4" PVC tube with end caps, all glued up, a hole in each end which is tapped to accept the thread on the connector, and some hose. For long runs I use 1/2" - rubber is best, as it flexes a bit with pressure peaks, and so tends to reduce those peaks.
It's actually quite liberating to talk to the people at the plastics shop and get their advice, ditto with the air people, and ditto with the tool people (auto, fastener, general tool store), about what you need, and how to do it. And then do it. When I retired I had never tapped a thread, now I have a drill press, an oscilloscope and a whole damned shop. I DIY everything - hell, if Jimmy Carter can retire and make all his own furniture, there's no shame to making my own audio!
Best of luck! Enjoy the journey!
As for hose and fittings, talk to the folks at an industrial air shop. They have connectors with barbs for the hose on one end, and threads on the other. A cost-effective alternative is as Ledoux, our OP suggests: a 4" PVC tube with end caps, all glued up, a hole in each end which is tapped to accept the thread on the connector, and some hose. For long runs I use 1/2" - rubber is best, as it flexes a bit with pressure peaks, and so tends to reduce those peaks.
It's actually quite liberating to talk to the people at the plastics shop and get their advice, ditto with the air people, and ditto with the tool people (auto, fastener, general tool store), about what you need, and how to do it. And then do it. When I retired I had never tapped a thread, now I have a drill press, an oscilloscope and a whole damned shop. I DIY everything - hell, if Jimmy Carter can retire and make all his own furniture, there's no shame to making my own audio!
Best of luck! Enjoy the journey!