If water is already recycled and leaking infrastructure has been fixed, desalination may be a cost-effective for affluent communities near the coast.
desalination = the removal of salt from sea water
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Power/Desalinization/Support,†
(source)
Michael Crichton, Jurassic Park, 1993
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The algae naturally and continuously desalinated sea water, which was why its core was salty while its outer surface was wet with fresh water: it was oozing the fresh water out.†
(source)
Yann Martel, Life of Pi, 2001