the pipe does NOT come up at one end of the raceway and empty at the other. When I was trying to put this all together I figured I'd need to have the racewway take care of the skimmer(s) as well, so 80% of the north leg of the raceway was going to be for the skimmers and they were going to go back to the lake through a couple of four inch lines that are at the east end of the north leg of the raceway...
