The grey waters are the same javonous waters. come from sinks, showers or dishwashers. They are rich in surfactants or surfactants (detergent residues).
John Rene Plaut
GRISES WATERS are the sewage that comes from tubs, showers, dishwashers, lavananos, dishwashers, washing machines and dryers, as opposed to the sewage that comes exclusively from the urinals and toilets.
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