Well I got the apex VDM mounted as well as the waveline DC2500h controller. Got it all wired up and configured in apex and it's working great. When I start the feeding profile the return shuts off, the sump fills up and the skimmer ramps down to the lowest power setting and does not overflow. The skimmer has been running for 24 hours now and here is what it's done so far.. keep in mind I have 1 fish, 6 snails, and 4 small coral frags.