</font><font color="blue" class="small">( The return line should be at least 1-1/2 times the inner diameter of the high pressure hydraulic lines to allow for fluid expansion and adequate flow at all times. )</font>
That makes sense. The only thing is I believe that the original return line was a smaller ID than the supply line. The photo in the book sure made it appear that way.
Thanks for the excellant description DarylnDaryl! There was just another thread dicussing the sizes where the return was 3/4" which I thought HAD to be a mistake, but thats what mine is! Makes a lotta sense!