I actually inherited about 20 large coils of 1 1/4" black plastic pipe (hdpe I think) that came with the property when I purchased it. It looked to be dumped just inside the woods, I'm guessing it was stolen. Each coil has a different color stripe on it. It looks like it could be irrigation pipe. Could this be used to run the air back to the pond from the compressor? I easily have 2500 feet of it.