I recently acquired a new to me kegerator. It is a Danby, the Model is DKC146SLDB. I cannot seem to get the kegerator to pour a proper draft. The best pour I have gotten is about 3/4 liquid. I replaced the old line with a 3/16 10ft new one. I also replaced the gasket on the coupler. I have tried changing the temp from everywhere between 38-41degrees. I have also changed the pressure all the way from 4 PSI to 15 PSI. The kegerator does not cool the tower (cheap design). I placed ice packs in the tower , all the way to faucet to ensure the tower was cooler. The lines are not frozen and there is no visible foam in the lines. I have wasted probably a half of a keg and half a tank of Co2 trying to figure it out. I am in need of help PLEASE!!