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LF: Earth systems

To: [email protected]
Subject: LF: Earth systems
From: Harry Woodhouse <[email protected]>
Date: Mon, 19 Apr 2010 09:45:54 +0100
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Would experience of an 80 year old timer be any use? Most water mains are now plastic, but if your house is pre-war like mine, the original disused iron main still exists somewhere. I found the old pipe in 2 neighbour's gardens, and connected a 1KHz signal to each end. I then searched my garden with a multi-turn loop for maximum signal. Digging down 4 feet I found the pipe. I then made TWO connections to it, filing the pipe clean, using 2 jubilee clips, and covering the lot with grease & tape. The idea of 2 connections is that you can always check continuity with an AVO to make sure BOTH are still connected to the pipe.

                              Regards,

                                   Harry G3MFW
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