AndyS wrote in news:58eba0a6-8107-40dc-85e9-
:

Andy suggests:

Couple a garden hose to the end you can find and run water into
the PVC.... Go to the area surrounding the buried end and look for
the
sandy ground to be wet......

Andy W4OAH




That's an excellent idea.... but I really hate water in my electrical
conduits.... I'll use that as a last resort. Thanks.

Ed

"Ed" wrote in message
. 192.196...
AndyS wrote in news:58eba0a6-8107-40dc-85e9-
:

Andy suggests:

Couple a garden hose to the end you can find and run water into
the PVC.... Go to the area surrounding the buried end and look for
the
sandy ground to be wet......

Andy W4OAH




That's an excellent idea.... but I really hate water in my electrical
conduits.... I'll use that as a last resort. Thanks.

Ed

Hi Ed

Have you considered the use of a wad of towel pulled thru the conduit to
dry it after using water to locate the burried end?

Compressed air could be used in place of the water. The air excaping
from the burried end shouild be easily detected.

Jerry KD6JDJ

Jerry wrote:

That's an excellent idea.... but I really hate water in my electrical
conduits.... I'll use that as a last resort. Thanks.

Ed


When in doubt, couple ways the Pros do it:

1) Run a Metalic Snake thru it, and hook to a (Low Power RF , or a
Fairly high power A.F. source-- follow the snake (above ground with
an inductive sampler ( or rf receiver)) to the end - use a cable
marker (Paint) to follow the duct if needed to find an intermediate
point , then repeat agan if necessary.

2) for those that have access to a "THUMPER", can do the same
Apply high level of sound to the PVC, and use a listening device
to follow the noise, in the ground.

Works for locating buried cables for utilities- should work for you!
Jim NN7K

"Jim-NN7K" . wrote in message
...
Jerry wrote:

That's an excellent idea.... but I really hate water in my electrical
conduits.... I'll use that as a last resort. Thanks.

Ed


When in doubt, couple ways the Pros do it:

1) Run a Metalic Snake thru it, and hook to a (Low Power RF , or a
Fairly high power A.F. source-- follow the snake (above ground with
an inductive sampler ( or rf receiver)) to the end - use a cable
marker (Paint) to follow the duct if needed to find an intermediate
point , then repeat agan if necessary.

2) for those that have access to a "THUMPER", can do the same
Apply high level of sound to the PVC, and use a listening device
to follow the noise, in the ground.

Works for locating buried cables for utilities- should work for you!
Jim NN7K

What an interesting thread!

How about one of those 'stage' smoke machines pumped into the open end?

VK5JE

"Ed" wrote in message
. 192.196...

I know this is slightly off topic, but since I am intending to run
some RF cable in the conduit, and since there are a lot of intelligent
hams on this group, I will proceed anyway:

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.

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

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

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

Tnx.

Ed K7AAT

Stab an antenna rod down until you find it.

"JB" wrote in
:


"Ed" wrote in message
. 192.196...

I know this is slightly off topic, but since I am intending to
run
some RF cable in the conduit, and since there are a lot of
intelligent hams on this group, I will proceed anyway:

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.

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

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

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

Tnx.

Ed K7AAT

Stab an antenna rod down until you find it.




A definate consideration.... since the ground is sand. If the
antenna rod doesn't just bend around the conduit... may just work. Tnx.

Ed

On Oct 15, 1:17*am, Ed wrote:
* *I know this is slightly off topic, *but since I am intending to run
some RF cable in the conduit, *and since there are a lot of intelligent
hams on this group, *I will proceed anyway:

* *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.

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

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

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

* * Tnx.

* *Ed * K7AAT

Ive done this to locate wires in walls, might work for wires in
ground.

Make a buzzer form a relay by attaching the NC contacts in series with
the coil and battery.
Connect it to a wire running through the conduit making sure the wire
is not connected to power. The buzzer will generate enough hash you
can pick it up on a pocket AM rx.

Jimmie

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

Ed wrote:


I know this is slightly off topic, but since I am intending to run
some RF cable in the conduit, and since there are a lot of intelligent
hams on this group, I will proceed anyway:

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.

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

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

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

Tnx.

Ed K7AAT


Another simple way - the old Native American waiting for a train
method. Push the fish tape all the way until it stops. Person 1 keeps
ramming the fish tape and person 2 puts ear to ground near far end and
listens for it. Needs no batteries or smoke.

Nix the water. I like the compressed air trick, Just don't look
directly at the conduit end . .

--
"From spongecake to satellites, it's gotta be Krebstar"

Another simple way - the old Native American waiting for a train
method. Push the fish tape all the way until it stops. Person 1 keeps
ramming the fish tape and person 2 puts ear to ground near far end and
listens for it. Needs no batteries or smoke.


I like that! I will try it before bothering to hook up an RF source to
the fish tape!


Ed K7AAT