This past weekend we got all of the pipe and didn't have to pay a penny. We are using 8 in. Schedule 40. The only thing we have to buy is an elbow. I will be back down in two weeks to install the pipe.
Here is an ok picture of what the soil looks like after some the topsoil has been removed. About 4 feet down you get into light gray clay. This stuff stays balled up nicely when moist and doesn't fall apart when it is in water.
Otto, check your PM's at the top of the page.
