In using the water unit I have found it to be very good. It is doing everything as advertised. With the 75% effeciency or for every 10 gallons that goes thru it I get 7.5 gallons of water. Less costly water bill since I live in town. Nearest effecient competitor cost over twice as much. 60% effecient. Most units I found would only purify 1 gallon for every 10 that went thru unit.
Date Purchased: 4/5/2010 Price Paid: $1500 Recommend: Yes
Let's you know how much total dissolved solids were in the water, when to change filter. Up to 300 gallons a day capacity. No tank to store water.