Practical precautions for ground water divining to avoid Heath effects

Dowsing , divination , locate ground water, buried metals , ores, gemstones, oil, gravesites, scientific apparatus, pseudoscience, scientific evidence , divining, doodlebugging, water finding, water witching ,water dowsing, Y-shaped twig or rod, or two L-shaped ones , dowsing rod, divining rod , coconut, egg, virgula divina or baculus divinatorius, "vining rod", witching rod , ideomotor response, electromagnetic effect, forked stick, electromagnetic theory, hydrogeologist

[arraundale]

sir some people infcat expert of dowsing predict the point by three of four method as you say already but still, still bore well go dry even for high depth near about 800ft, and tell us which methode confim that therre is water and not any other like minerals or big rock etc ?