NNAFish,
I did NOT like the action of the dye in your last video. It appeared to have very strong positive buoyancy. How is that going to help find a leak on the bottom?
Did your dye come as a liquid, or was it a powder that you mixed into water?
I wonder if future users could use temperature to control the buoyancy of the dye? For example, refrigerate the balloons for negative buoyancy to find a bottom leak, warm the balloon in a warm-water bath to find a leak that you suspect is high in the pond bank or dam?
Thanks for all of your great info in this post!
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