Ko te peita/pani wai te mea matua ki te koroni, te hinu, te whakaehunga ranei, te taapiri i etahi kaiawhina e rite ana, me te whakarewa pararopi, te hanga wai ranei ka noho hei wai piri.Ko te peita wai, ko nga whakakikorua ranei he pai te mahi he pai te mahi whakahaere, he pai te mana hipoki, he kaha te piri o te kiriata, he pai te pupuri wai me etahi atu ahuatanga;Ko te cellulose ether te rauemi mata tino pai hei whakarato i enei taonga.