Translations:Wasseraufbereitung und Grauwassernutzung/1004/en
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Many homes and buildings provide the option to install water treatment systems so that the collection of the water is achieved simply by gravity. The size of the pipe needed can be calculated as under section 3.1. These gravity systems must simply be installed below the outlet of the collection points like showers and can be in basements, underground, indoor/outdoor, etc.
