putting in a new sewer treatment plant so we have to run this 36" line to the pump station..but first we had to dig up this 20" fused force main...and move it over a few feet..we'll be using the John Derre 450lc for digging..it will be 20' deep once i get out of this old pond that i dug through. we will be pulling a shield..the other hoe is a older Kobelco 340