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Old 08-28-2012, 05:37 PM
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1idejim 1idejim is online now
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irrigation valves use stainless steel metal parts, ferro-magnetic locators won't work. Tresure locators which locate non-ferrous metals usually don't work do to the extremely small footprint of the parts and the depth/soils mass.
if you choose to a metal detector you fall into the "even a blind pig gets a peach now and then" catagory. it's more luck than not.

that's what my original post should have said.

http://www.minelab.com/__files/f/110...D%20THEORY.pdf

http://whiteselectronics.com/product.html
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