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[pawaterguy]

That makes sense. What kind of water does the HomeSpring unit use to backwash? IE: how many "wasted" gallons? In order to get an idea for efficiency over a standard whole house RO setup. I'd imagine it would be much cheaper to install than a whole house RO...what with the large storage tank and repressurizing system and all. Just curious about that backwash. It may be worth mentioning to my company as an option...since we sell tons of the GE hybrid water heaters already. We should have access to the whole GE line I would think. Gotta look into it and get more info.

[Andy CWS]

Is uses treated water stored at the base to backwash itself.

http://www.edspumps.com/UploadMediaFiles/file//How%20Homespring%20Works.pdf

I would say that depending on the water used, it would use far less water down the drain than a typical wholehouse RO. Far less electricity, too.