I currently have a broken main line from the street shutoff valve, to the shutoff valve in the house.. The house is at Lake Tahoe, Iv'e got to set the new line a minimum of 24" if I can get 36" deep I will. The line has to handle 200psi.. The area has a lot of ground movement and I want to put in a pipe that I will not have to worry about for a long time.. What is recommended??

About what length are we talking about?

What diameter tubing are you thinking about?

Are we talking expansion or shear type of loads?

Something to get you started: http://en.wikipedia.org/wiki/Pipe_%28material%29

I think I would with schedule #40 PVC. Either 3/4" with a max working pressure of 480 PSI or 1" with a MWP of 450 PSI. In long lengths this material is flexible enough to withstand ground movement. Good luck, Tom