One thing about dowsing....it either will work for you or it won't. There are different forms of dowsing which get variable results in the hands of the dowser. Using a forked stick will work for some and not others, the same being true for the use of pendulums or coathanger wire...
Another note of interest...water witching/dowsing commanded a chapter in the USA Army Field Guide for WW I ! It is one of the more publically honored/respected divining systems in the world today. As I've said earlier, it usually boils down to whether you can or can't divine. It's likened unto a genetic trait., like being able to 'rolling' your tongue! (IMG:
style_emoticons/default/laugh.gif)