I agree with Paul, I did get lots of good advice. I am very appreciative for all of it!
I dug the trench today and quickly found out, as with everything else, it was not going to be as easy as I hoped. The area in which we live is full of buried rocks and they are the bane of my digging existence.
The run is about 80 feet from the side of the house down to a dock. I put the first trench in and since I was also digging trenches for all of the downspouts I ran out of time to do the second trench to the dock.
I am going to go with the seemingly more popular theory that there will not be significant problems.
I took the advice and will be putting in the grey PVC conduit. I have my cat5 and speaker wire cable.
I had not thought of water getting into the joints, I thought if I glued them they would not leak. There is a good slope from the house to the dock, should I just leave the end off the bottom to allow for any drainage?
Thanks again for all of the input...
CT