I'm sure from reading the reviews on Reverse Osmos...

I'm sure from reading the reviews on Reverse Osmosis Systems from US Water Systems they have a sold a lot of good ones. But the one I received was a whole lot of trouble. After several phone calls to the company and buying difference things on eBay trying to get it to work better, after around a year I give up on it. Then I bough one with out a pump on top of it from eBay for less in cost and so far it has worked much better.