ʻO nā membrane kānana hoʻomaʻemaʻe wai home home kahi koho maikaʻi loa no ka wai maʻemaʻe ma ka home. Hiki iā lākou ke hoʻopau pono i nā mea haumia like ʻole e like me nā metala kaumaha, bacteria, a me nā kemika ʻino, e hōʻoiaʻiʻo ana i ka wai inu maikaʻi. He lōʻihi kēia mau membrane, e hōʻemi ana i ka pinepine o nā pani. He maʻalahi hoʻi lākou e hoʻokomo, kūpono i nā mea hoʻomaʻemaʻe wai maʻamau. Eia kekahi, ʻoi aku ka maikaʻi o ke kumukūʻai, hāʻawi i ka mālama mālama wai no ka wā lōʻihi.