Amanzi angumthombo wokuphila, umzimba womuntu ojwayelekile wemetabolism impahla edingekayo.Ukuze kuqinisekiswe ukuphepha kwamanzi ayisisekelo, i-China yakha futhi yamemezela Izinga le-Sanitarv Lamanzi Okuphuza kusukela ngo-2007 (GB5749-2006).Eqinisweni, lapho abantu bethatha isinyathelo sokusebenzisa amanzi, akulungile ukufinyelela izinga lezempilo ngempela.Ukuze kuvikelwe impilo yomzimba futhi kuqinisekiswe izinga lempilo, ukuhlunga kwezici ezihlukahlukene (ngokomzimba, amakhemikhali kanye ne-biological) kuthinta.
Amanzi anempilo futhi aphephile ahlala edingeka ekuphileni kwansuku zonke.I-Dali meltblown kanye nezinto zokuhlunga ze-carbon rod ezigunyazwe yi-NSF zisetshenziswa kakhulu ekwelashweni kwamanzi okuphuza.