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Mobydisc said..
After reading about hydrology it's pretty clear water is widespread underground. It's basically everywhere seeping down from rains over year after year. So I reckon as a diviner you have a better than even chance of striking water.
I found a website explaining how to dig a bore with PVC pipes, a drill bit and water pressure. I'm half tempted to give it a go down the bottom of a hill on my farm. There is a gully there flowing into a dam. I'd hire a pump to supply water for the drilling, pumping water out of the dam under high pressure, a crucial need in drilling.
However I now think water tanks collecting rain water is the go. If over time I get about seven 20,000 litre tanks connected together, sitting parallel, I think this will be enough to get supply water through driest of times. They cost about $2500 a pop. They would also require effort to level out a site for them. I'd imagine it would cost about $100 in fittings to connect them up. I'd prefer them to be linked from the top with the overflow of the first flowing into the second, flowing into the third and so forth.
However the idea of a bore supplying just say 100 litres of good fresh water a minute is very appealing as it would make my farming operation independent of the weather.
Hydrology = study of water on the surface.
Hydrogeology = study of water underground.
Geomorphology = study of the physical features of earth surface.
Want to find water? Add a little geology and understand these three things.
Get yourself a geology map, look for the permeable rocks and the faults. Study the surface for lineaments which might be faults. You can download all this stuff for free from your local geol survey... Jeepers, they probably even have a hydrology map.
Study the current drainage patterns.
Study the paleodrainage patterns.
Permiable rocks, faults and paleodrainage are your friend...
Then there's water quality to worry about.