On Sunday, 22 March 2009 08:58:33 UTC, gray wrote:
What the best (but cheapest) way of tracing a mains water pipe in the
ground on private property.

Is ther any thing I can buy, relatively cheaply ??

Anyone just reading this now, re plastic water pipe, if you an an idea were it is likely to be you can use fencing wire to gauge the length, curl the end of the wire round neatly and tape it so it does not chafe the pipe, disconect the mdpe pipe at a accessible point and feed the wire down, if there are no other services near such as cables you may with a good detector be able to find the wire, alternatively hire a 'CAT SCAN and GENNY' you connect the genny to the fencing wire or other wire you have put down the pipe, this generates a radio signal and the cat scan detects this very easily, playing with this i managed to locate a 32mm mdpe plastic pipe all the way from my house under the garage floor and across my paddock for about 50yds the pipe was burried 2 feet down, 3 feet under the paddock. you can also locate plastic drains this way. Where i drew my line maker paint when i dug the hole it was within 2" of my line