DIY Horizontal Boring

[LLigetfa]

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.

 

[LLigetfa]

The plan was to leave the IMC in place after driving it and locating the end. I didn't want to have to use the more expensive rigid conduit and leave it in the ground.

Cost comparisons per foot:

Rigid = $2.25
IMC = $1.41

I thought that alternately, I could use SCH40 iron pipe inside larger belled PVC conduit and then pull out the iron pipe after driving it but then I'd have all this left over iron pipe.

 

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[LLigetfa]

Went to Manards but they didn't have IMC but they did have 3/4" ridgid conduit on sale for the $1.39 so I went with that.