isn't toilet water recycled

送交者: kma 于 2009-10-29, 15:58:58:

回答: toilet to tap 由 meiyou 于 2009-10-29, 15:22:18:

i mean mixed with other waste water and then purified to tap water again

if not, those water just go to river and sea?

not for drinking normally - meiyou (416 bytes) 2009-10-29, 17:42:28 (378432)