It has generally been the way of the West when it comes to water law: If you can show that the water is there, that it's not being used and that it will be put to beneficial use without harming anyone else, it's yours.
Nawu lowu hlamuseriweke, wa tirha: tiphine hi ntshunxeko kambe loko kuve, swi nga vavisa un'wana, u nga wu tirhisi hi ku hetiseka.