We use 3/4" conduit. To get the mojo to fit put one end in a vise and start squeezing it together. The first side needs to be squeezed smaller than what you need. Spin the conduit 90 deg. and squeeze again. Then hammer it out to get the correct fit. At the bottom I cut the conduit at an angle and pinched it flat in the vise, then ran a bead of weld down the seam. This keeps it from filling with mud and water to then later freeze, making it heavy. I also welded a 8" piece of 3/8" rod about 2' from the bottom to step it into the mud. If you don't have remotes on the mojo, make sure you turn it on before raising it.
I hate when that happens. One of these days I will get remotes installed.