That procedure works great when trying to cross a four foot wide
walkway. But he wants to go 40 feet! Professionals can drill under
an interstate highway and come out the other side. But for a
homeowner project, I think 40 feet is way too ambitious. Of course,
I live in a very rocky area. Those old time farmers didn't build all
those charming stone walls for fun. They had to get those rocks out
of the field and put them somewhere. So if you live in a wonderful
place with soil like chocolate pudding then give it a shot. Then
tell us about your success so I can be extremely jealous.
-Steve Trovato
Putnam Valley, NY
At 05:58 PM 9/2/2011, Peter J. Thomas wrote:
>On 8/31/2011 12:55 AM, Brian Kemp wrote:
>
>>Paraphased: how to drill hole through soil for a pipe.
>
>When running irrigation under an existing side walk the use water to
>"drill" under the sidewalk. I've NEVER done this but understand the
>process. To run a pipe under the sidewalk you dig a trench long
>enough and at the same depth to hold the pipe. Lay the pipe in the
>trench and begin GENTLY hammering it underneath the side walk. The
>trick is to run a garden hose, or even better a pressure washer
>hose, inside the pipe to wash away the soil. The pressure from the
>water digs out the soil just ahead of the pipe and softens the soil
>so you can drive it in easier.
>
>Peter T.
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