I have a 3 car garage with a wall splitting the 2 car space and a 1 car space. I would like to put a DIY minisplit in the 2 car section but the condensate and refrigerent lines will have to traverse the 13' wide single bay garage to get to the outside wall. I am thinking of just building/boxing out a space to run the lines. My concern is that in order to gravity feed the condensate line I would guess I would need to box out 18' high or so. I would rather not make it that large so I am thinking of using a condensate pump. Anyone use one with a Mr Slim unit. If so, which one did you use? Any do's/don'ts for installation?