Ko te putea-i-pouaka 3L he momo kete e whakamahia ana mo nga wai penei i te waina, te wai me etahi atu inu.Ko te tikanga he putea kirihou kua whakakiia ki te wai ka tuu ki roto i te pouaka kaata.Ko te hoahoa putea-i-pouaka e whakahaere ana i te rokiroki me te tohatoha i te mea ka tiakina te hua me te ngawari ki te hapai.Ko tenei momo kete ka whakamahia mo te nui o te wai, he rongonui i roto i te umanga waina mo tona kaha ki te whakaroa i te oranga o te hua ina whakatuwheratia.