The typical corrugated pipe connector is to jam the two pieces of pipe into the connector. Of course, this is a rather sloppy connection and in heavy downpours water gushes out of the connection. I use this connector when I join two pieces of pipe because it makes a better joint by funneling all of the water from one pipe inside the next one. I also try go make sure it is a positive downward joint when possible. I'm sure there may end up being some back-pressure when the flow is heavy which would cause some water to gush out, but this is certainly better than the usual joint.