Originally Posted by
Shrimpy Brains
http:///forum/post/2933455
It is possible your drain from fuge to return may not work. Not sure water pressure in pipe running across and slightly downward will be enough to overrun water pressure in return chamber. When gravity feeding, it is customary to run into chamber from above, not below, so there isn't any back pressure on drain.
Maybe someone else will chime in here with a better thought. Understand your wanting to use existing plumbing, but now I'm thinking it wont work that way.
I'm not sure....but what I do know is I don't want to do all the work and then it not work. It doesn't seem like people like my thread at all though....