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साधन चिह्नित: Water Closets

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  1. Goodbye to the flush toilet: water-saving alternatives to cesspools, septic tanks, and sewers

    01-01-1977 Eight articles exploring the construction and environmental benefits of such alternatives to water-borne bathroom-waste systems as composting toilets and compatible greywater systems are followed by a directory of sources for hardware.
    Water-Closets Water Conservation