Quote:
Originally Posted by chipj29
Re: fresh water-If cruise ships can have systems to turn sea water into drinkable water, why isn't that technology widely used on land? 
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It's called "Reverse Osmosis" and is very expensive. Some countries use it a lot... Australia is one of them.
The United States still has plenty of potable water so we don't need to use it that much right now.
You can buy a "Reverse Osmosis" filtering unit at Walmart for @ $250.