Potakaro urunga hau Maka rino Piu Taki takirerehe momo takirere piu e mau ana ki te rango urunga hau ki te aukati i te pupuhi me te hama wai.ithe tinana takirere, he potae, he kōpae e hono ana ki te hinge.Ka piu atu te kōpae mai i te nohoanga takirere kia rere ki te ahunga whakamua, ka hoki ki te nohoanga takirere ka mutu te rere whakarunga, hei aukati i te rere whakamuri. ka taea e ia te rere ki tonu, kore e arai, ka kati aunoa i te hekenga o te pehanga. ka kati katoa ka tae te rere ki te kore ka aukati i te rere o muri.Ko te porowhita me te heke o te pehanga i roto i te paera he tino iti.Ka whakatuwherahia te paera e te rere o te wai i tetahi huarahi ka kati aunoa ki te aukati i te rere i te huarahi whakamuri.

the mea hanga te piha ki te rino maka, te rino ductile, ka whakamahia te nuinga mo te tuku wai me te puna wai, me etahi atu waahanga ahumahi o te putunga paipa hei aukati i te rerekee o te reo i roto i te pehanga iti me te pāmahana noa.ka taea te whakauru ki nga taputapu mana kati ko te Air Cushioned Cylinder, Oil Controlled Cylinder, Raro Whakaeke Kaipupuri, Lever & Spring me te Lever & Taumaha.