So I got the plug out and thought it would all be easy from here on out

When trying to install my stainless line into the upper filter hole , there seems to be a clearance problem with the 90 deg elbow. When trying to atatch the line to it there is to much interfearence from the housing to do so. Do I just need to tighten the heck out of the elbow so it turns out of the way? It does not seem that I can turn it any further :?
Help :idea: