https://mikesinventions.etsy.com I wanted to test my new Aqualung i330R dive computer as well as many other things, so I finally had the excuse to build the pressure testing chamber I've been thinking about for a long time. It's made from 4" PVC pipe, and items are placed inside by removing the cleanout plug at the back end. The front end contains an acrylic window so I can see what's going on inside. Check out how I built it. This last half of the video shows the home dive screen on the i330R in a "dive" in the air to 121 feet, a safety stop at 15', and the surface mode screen. I'm working on an R/C servo tray I can insert in there with the computer so I can control all its functions on the surface and get used to using it while on the surface. That'll be a later video. Stay tuned.