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Posted by Randy Cox on July 3, 2006, 9:10 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
>
> Rent a "cable locator".
>
> --
> --John
> to email, dial "usenet" and validate
> (was jclarke at eye bee em dot net)
There are specialists that find these pipes by sound equipment. They find
leaks or water flows by this way. You can find these guys in the yellow
pages under leak detection.
As an electrician we often use what we call tic tracers, or Fox and Hound
units to induce frequency into wires which we can trace with a wand. This
might work if the copper was close to the surface, but I think I would have
heard of it if it worked commonly. I have never heard of this being done;
but that doesn't mean it isn't possible. The metal detector would probably
be confused by all the steel in the concrete. The metal detector
instructions say various metals can be tuned in or out........but I've never
been able to tell the difference between a gold coin or a beer can tab.
Believe it or not, some will bend a two inch section of a welding rod or
brass rod at a right angle, make a fist with the two inch part being held in
the fist in such a way as to allow the rest of the welding rod to rotate
freely as it so decides. I've seen people find buried electrical cable and
water lines in this way. The rod will point at the cable or pipe. When
they walk past it, the rod will change directions toward the cable or line.
This requires either faith or an undisclosed previous knowledge of the
location to work. I was never sure which one. It remains a mystery!
Randy R. Cox
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