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Psychodidae, also called drain flies, sink flies, filter flies, [2] sewer flies, or sewer gnats, is a family of true flies. Some genera have short, hairy bodies and wings, giving them a "furry" moth-like appearance, hence one of their common names, moth flies . [ 2 ]
Water coming from domestic equipment other than toilets (e.g., bathtubs, showers, sinks, washing machines) is called greywater. In some sanitation systems, it is preferred to keep the greywater separate from blackwater to reduce the amount of water that gets heavily polluted and to simplify treatment methods for the greywater. [citation needed]
However, the sinks most commonly called butler’s sinks are usually quite wide and deep, and are still found in contemporary kitchens today. The names have been used interchangeably at times, though.
These rooms are typically referred to in North America as half-bathrooms (half-baths; half of a whole or full-bathroom) in a private residence. [ 1 ] This room is commonly known as a " bathroom " in American English , a "toilet ", "WC", "lavatory" or "loo" in the United Kingdom and Ireland , a "washroom" in Canadian English , and by many other ...
Greywater (or grey water, sullage, also spelled gray water in the United States) refers to domestic wastewater generated in households or office buildings from streams without fecal contamination, i.e., all streams except for the wastewater from toilets. Sources of greywater include sinks, showers, baths, washing machines or dishwashers.
The odor detection threshold is the lowest concentration of a certain odor compound that is perceivable by the human sense of smell. The threshold of a chemical compound is determined in part by its shape, polarity, partial charges, and molecular mass. The olfactory mechanisms responsible for a compound's different detection threshold is not ...