[Shop-talk] Tunneling drain pipe down a hill?

[Randall]

> 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.

Exactly the process I was trying to describe, but your description is much
better.

-- Randall