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Locating a pipe under a slab Walter R. 07-01-2006
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Posted by Walter R. on July 1, 2006, 12:07 pm
Is there an easy way to locate a copper (water) pipe under a slab? Would a
metal detector do it?

Any way of injecting a radio signal into the water pipe system and picking
it up with a radio wherever the pipes run?

I would greatly appreciate any help
--
Walter
www.rationality.net
-



Posted by Speedy Jim on July 1, 2006, 12:27 pm
Walter R. wrote:
> Is there an easy way to locate a copper (water) pipe under a slab? Would a
> metal detector do it?
>
> Any way of injecting a radio signal into the water pipe system and picking
> it up with a radio wherever the pipes run?
>
> I would greatly appreciate any help

Metal detector...maybe. Will pickup any rebar in the pour too.

You could force a large AC current thru the pipe and use a
search coil connected to an audio amp to locate. This could
be quite accurate.

Run water thru pipe and listen for the flow??

Jim

Posted by hallerb@aol.com on July 1, 2006, 12:30 pm
water companies have a radio device to help find lines.

whats up that you need to locate the line?


Posted by Walter R. on July 1, 2006, 1:00 pm
Need to drill some holes in the slab to kill termites under the slab.
Termite company cannot locate pipes.

--
Walter
www.rationality.net
-
> water companies have a radio device to help find lines.
>
> whats up that you need to locate the line?
>



Posted by zero on July 1, 2006, 1:54 pm
wrote:

>Need to drill some holes in the slab to kill termites under the slab.
>Termite company cannot locate pipes.

Flow as much water as you can thru the pipe. Listen to the slab with
a mechanics stethoscope and mark the strongest areas with a piece of
chalk or soapstone.

When you drill thru (concrete basement or slab floor?) you stop the
drill once you feel you're going thru it. Enough pressure to go thru
the concrete via masonry bit, but not leaning on it and drilling
through the soil/fill below.

The pipe should not be in contact with the basement slab if it was
installed properly.

Just always be prepared for _plan-B_. Get a quote on replacing the
pipe (above ground) before you start.



-zero


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