[PLUG-TALK] I think I need a metal detector

Richard C. Steffens rsteff at comcast.net
Wed Sep 28 22:11:39 PDT 2011

On 09/28/2011 07:42 PM, John Jason Jordan wrote:
> The purpose is to locate water lines under a front lawn. That is, the
> lawn is naturally brown this time of year, but there are two very
> suspicious lush green spots. The water bureau has been out and they
> swear it's not on their side.
> I know zero about metal detectors. Any and all information would be
> appreciated.

Several years ago we could hear water running but it wasn't in the 
house, nor was it any of the hose bibs. Our water supplier has a set of 
hydrophones (I think that's what they called them) that they loan out to 
customers. Basically the set has a solid disk connected by surgical 
tubing to a stethoscope like head set. and all contained in your 
standard 1960s oak case. You put the disk -- or maybe it was a pair of 
them -- on the ground and listen for where the sound of the water is. It 
didn't work for us because the leak was right at the foundation where 
the old galvanized pipe enters the basement. But something like that 
might work for you. I have no idea if the Portland Water Bureau has 
anything like that to loan to customers but it wouldn't hurt to ask.


Dick Steffens

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