Alright guys shout out to @ReefEco ! It works! I just cleaned my skimmer cup. No nastiness even trying to smell the skimmer when installed. As soon as I remove the StinkSink and take the cup out.... Yep, it's definitely eliminating the odor leaving the skimmer. Now they need to come up with something that makes the skimmate smell like roses so cleaning the skimmer isn't quite as bad.