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Green Building Bible, Fourth Edition
Green Building Bible, fourth edition (both books)
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General: Reverse Osmosis

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      CommentAuthorfostertom
    • CommentTimeApr 29th 2008 edited
     
    "Reverse Osmosis units treat the drinking water by filtering it though a membrane similar to a polythene sheet. Around 25% of all the water treated will go through the membrane and approx 75% will go to waste along with all of the contaminants contained in the water" http://www.1x1x1.co.uk/water/reverse-osmosis/under_sink_ro/domestic_water.htm . Is this Good or Bad?
    • CommentAuthorbampton
    • CommentTimeApr 29th 2008
     
    RO water is certainly not good nutritionally speaking. Absolutely everything apart from literally h20 is removed, so no beneficial minerals etc. It is pure as pure can be - I can't comment on the 75% waste. I used to work in a holistic clinic where all drinking water was RO (I didn't agree with this and neither did visiting doctors who insisted that patients had supplements to make up for the 'empty' water) - the RO unit was under the sink and I am damn sure that it was just a filter i.e no return or overflow for waste water...

    I am sure it has its uses in industry but I am really no expert - just anecdotal comments I'm afraid.
    • CommentAuthorjoe.e
    • CommentTimeApr 30th 2008
     
    It's great if you've got loads of power and loads of undrinkable water, as in a very sunny place by the sea with no fresh water available - bits of the North African coast come to mind, as do boats - ocean racers use them so that they don't have to have lots of water weighing them down. Otherwise what is point?
    I'm not convinced that the mineral content of water is large enough to have any value for human health.

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