1. Ko te pahū o roto he pahū me te hanganga octagonal, e pai ake ai te whakangohengohe o te hiako.Ka whakamahia te punaha whakamahana hiko me te punaha hurihanga hiko.Na te mea he punaha whakahaere whakamahana mohio mo te whakamahana, ka taea te whakahaere tika i te pāmahana.
2. Ko te tere o te pahū ka whakaritea e te kaitahuri auau ma te mekameka.Ko tenei pahū he mahi taima mo te mahi katoa, te huri whakamua me te whakamuri me te hurihanga aronga kotahi.Ko te wa mo te katoa o nga mahi, nga hurihanga whakamua me te whakamuri me te wa i waenga i te anga whakamua me te whakamuri ka taea te whakarite kia taea ai te whakahaere i te pahū kia taea ai te whakahaere i te pahū i nga wa katoa.
3. Ko te matapihi tirohanga o te pahū he mea hanga ki te karaihe toufhened tino marama me te kaha teitei e whakaatu ana i te parenga teitei.He kohao hau kei runga i te karaehe kia rere kore te hau ki roto i te pahū.