1. Te hoahoa anti-pupuhi.Ka taea e te riipene taha whakaneke ake, me te kōpae maanu hoahoa anti-pupuri-rua te aukati i te wai kia kore e puhake, kia maroke, kia pai hoki to papa.2. Te hoahoa anti-slip.Ko nga papa rapa anti-paheke ki raro kia u tonu te peihana, kia kore ai e paheke i te wa e inu ana te mokai.3. Hoahoa wetewete.Ka taea te wetewete te ipu karaihe, whakamahia noa he tauera, hautai ranei hei horoi, ka horoi ki te wai ma.(Kaore e taea te horoi i te potae me te pounamu ki te horoi rihi, ki te wai wera ranei.)