I need to run some underground electrical and don't want to tear up a lot of yard with trenching. I was thinking that I could use a dock auger (pic below) on the end of some IMC conduit to bore horizontally from inside my crawlspace. I have hard blue clay. Do you think 1 inch threaded IMC would be strong enough? I could pump water into the IMC which would lubricate the auger tip and help the IMC slide.