Folks, I never said a utility locating service would would locate private lines, I questioned if any of these services used witching to find their lines. None, that I am aware of do. Thats because, I think, it dosen't work. In order for it to be true, the guy running the sticks,(wire?)would be blindfolded as not to be biased as to a logical location of a line. He would have to be put in several fields, 50% with known utilities and 50% known without, with results recorded. Then, turn some loose with ground penetrating radar, send them over the same course under similar circumstances and compare the results.I would hate to be the guy that used witching to clear a construction site only to have the excavator hit a pipe/line and get someone hurt or killed, then being in court trying to defend "The Witching Method", given that no one can explain how it works. Meanwhile,the alternative, the GPR guy that batted 100% on our field trials, could tell if it was a wire, a pipe, and what kind of pipe it is, and he would have have no trouble explaining his instrument/theory/method to the jury.
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Today's Featured Article - The Nuts and Bolts of Fasteners - Part 2 - by Curtis Von Fange. In our previous article we discussed capscrews, bolts, and nuts along with their relative hardness and thread sizes. In this segment we will finish up on our fasteners and then work with ways to keep them from loosening up in the field. Capscrews, bolts and nuts are not the only means of holding two parts together. When dealing with thinner metals like sheet tin, a long bolt and
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