...You could measure water speed by filming a small object traveling with the water through the test section. Something light like a piece of feather would be good, preferable have it suspend in the water rather than float on the surface or sink to the bottom. A couple of strips of tape can mark the distance and frame count will give you accurate enough time.
Get out of my head man!
I did exactly that last night and would have had this posted but decided to go to bed while YouTube processed the video. Anyway...
I made 4 runs, each with the center section in slightly different places to test the difference in the current. Some of the flows are not optimal to run a lure in, but the point was to test the speed. The video was shot and edited at 60 frames per second but if you don't trust my math on the video and decide to do it yourself, then you will need to use 30 frames per second because YouTube renders all their videos to 30 frames per second (at least that is what I understand... I would need to confirm that though)
The tape is approx. 3/4" and I counted frames across a 6" span. I hope this hepls!
Edited by atlasstone, 21 February 2013 - 08:47 AM.