| Method | Success Rate | Cost | Notes | |--------|-------------|------|-------| | Random drilling | 30–40% | High | High risk, wasted capital | | Traditional dowser | 50% (by chance) | Low | No scientific basis | | | 65–75% | Low-Medium | Good for initial survey | | App + geophysical survey | 80–85% | Medium-High | Best for deep aquifers |
Every search adds to a crowd-sourced aquifer map, benefiting everyone. ttbyq-alkshf-an-almyah-aljwfyh
Water-filled fractures conduct electricity better than dry rock. An app that interfaces with a resistivity meter measures apparent resistivity (ohm-m) at different electrode spacings. Low values (<50 ohm-m) often indicate clay or saline water; moderate (50–200 ohm-m) can be fresh water in sand/gravel; high (>500 ohm-m) is solid rock or air voids. | Method | Success Rate | Cost |
(USA)