Just an update for everyone. I dropped the foam line lower to around a 1/2 inch below the bottom of the cup as suggested by Russ265. I would say that the liquid is a darker color than before and there is slightly more sludge. However, after examining the skimmer after starting it up again, I really dont think that I am getting good quality bubble formation as of right now. It could be my imagination but even a few hours after cleaning it I have had little foam formation whatsoever, an issue that I have not seen on other skimmers functioning properly. Is it possible that even though the pump looks to be in good shape there could be something wrong? Or is it just the fact that I need a better quality skimmer to function the way I want it to?