The problem is you demonstrated that there isn't a random flow being generated.finally had an idea how to show the flow on this RFG I have been tinkering away at, it is a slip design that PVC will slip in to. a different option than the loc line. I like it because it has a much wider diameter , much less flow restrictive , and doesnt pull water (or air) from the tanks body of water to create a tornado pulled from the surface. couldnt use the loc line RFG because i had to keep them 2-3" below the water surface
The claim to fame for the original RFGs is that through proper geometry it creates a randomized flow that switches directions. Your video just shows that the water is flaring out.