A1 raupapa Ko te raupapa A1 te tauira tino nui o te miihini whangai paipa aunoa, e tango ana i te whangai puku mekameka.
A2 raupapa Ko te raupapa A2 he miihini kai paipa aunoa, e whakamahi ana i te tikanga whangai paipa marau..
A3 raupapa Ko te raupapa A3 he taputapu uta paipa-aunoa.
Roa ngongo: 6000mm
1. Te Uta Rerekē Tube Hangaia ngawari
Porowhita, Tapawhā, Tapawhā me ētahi atu.
2. Te Whakanui-a-Kainga
He pai mo te hanga papatipu, te wa haumaru me te kaha i te wa e whakaputa ana.