I use the measurements in the diagram. I used 60" + connection (about 4") and modeled it like the diagram. I used a hose clamp on the vertical and soldered a terminal lug on the bottom end.My question for Binrat is which dimensions for the loop (like the V58) is like the one stated in the V58 directions which is 17 7/8" each for 2 pieces or the Home made one as your link stated which is 6'? Big difference between the two.