Provided I had a bit of a slope at the top of the hill back down to the pond.....what about using solid corrugated drain pipe in either 4" or 6"? I feel that would be more durable than the blue layflat hose but I'm not sure about how it would handle the pressure. Also being ribbed I'd likely need to go with 6" to account for the friction loss if I was pumping a 4" flow into it?
