How to make a PVC pole that locks into a Scotty Mount
A 1/2'' PVC pipe fits into a Scotty base, but if you cut a Z shape on the bottom of the pipe, you can also get it to twist lock. It's not as secure as an actual Scotty accessory, because there's a friction component. I've had some people ask for pictures on how it's done so I made a video. Works great for a dive flag pole.