re: This looks like a cool river running toy.

It looks like a fantastic toy. I bet it's a blast to use up there, but I don't see it running hyacinth. From what I have seen in jet skis and jet foot boats is that they don't need much water to operate, but they need water. Any little amount of air or debris pretty much disables the impellers and takes away all the power.

Looks great for rocks though.