Back into the ocean. If you just dump the saline in one place it's bad, but good practice is to dilute the saline with sea water, after which it's perfectly saf

Back into the ocean. If you just dump the saline in one place it's bad, but good practice is to dilute the saline with sea water, after which it's perfectly safe. The ocean evaporates more fresh water from its surface than humans could ever possibly match by desalination, so that part is perfectly fine. Just avoid dumping the saline in high concentration (which is easy to do).