I was thinking of using a 45 degree out of the back of the GARN with a short piece of pipe then another 45. Is this worth the effort or will it really make much of a difference over using 1 - 90 degree elbow? I would then repeat the procedure to get from the back of the unit along the side. So, in other words, would 4 - 45's be better then 2- 90's (for each supply and return pipe run)? Thanks.