On 15 Oct 2008 05:17:22 GMT, Ed
wrote:

Last year at the beginning of construction of a new house I buried
about 50 feet of 3/4" Sched. 40 PVD between the house and a location on
the property perimeter. Now that I am ready to use it, I can not
locate the perimeter end.... it is somewhere in about a 10' area, and the
end curves up to probably about a foot underground.

If there is a wire in the conduit, just rent a "cable finder" from the
local rental yard. It's a low frequency transmitter and receiver
combination. If you have access to one end of the pipe, just shove a
metal "snake" into the pipe to provide a suitable conductor.

The ground is nearly pure sand, and is well landscaped now to the
point that I do not want to randomly dig it up.

That should be easy. Dry sand doesn't attenuate the signal much. Wet
sand is another story.

The end terminated in an elbow curving up and is well duct taped
shut.

Ummm... I think you'll find that the duct tape has dried out by now
and that your pipe is full of water and sand.

Can anyone suggest a method or equipment I might use to locate that
far end?

The cable finder is the right way. Ground penetrating radar will work
but is messy.

You can pressurize the conduit with an air compressor. That should
blow off what remains of the duct tape. Use your ears or a
stethescope to listen for the noise through the sand. If the end is
just below the surface, it should make a nice blow hole. Be prepared
to clean the sand out of your uncleable buried elbow.

If you think the pipe is clear, drop a small loudspeaker down the
other end and play rock music with a heavy bass beat. You should be
able hear that 50ft away. Use a stethescope.

--
Jeff Liebermann
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558