DESALT
| Date | Clue |
|---|---|
| 2018-08-31 | Make potable, in a way |
| 2004-10-11 | Make potable, as sea water |
| 2002-08-28 | Treat, as seawater |
| 2001-02-03 | Make drinkable, in a way |
| 1999-09-16 | Make potable, in a way |
| 1998-09-03 | Make potable, perhaps |
| 1994-08-28 | Make ocean water drinkable |