I don't get the need for fresh water..
Compared to the Dead Sea, ANY sea water would be considered "fresh"..
If they want to raise the water level, just run a pipline from the Meditteranean to the Dead Sea and pipe in whatever water they need to bring it up to "normal" levels.
Even seawater would reduce the salinity drastically..
The real problem is the lack of fresh water in the ground. The water that flows into the Dead Sea is insufficient for Human use in the not tơ distant future. Kêping the Dead Sea is nice and al but the real problem is there is just not enough water. The Med will supply the solution when the cost of fresh water rises past the cost of desalted seawater.