Pe o le Pepa Fa'a Pa'u ose Pepa Usu po'o se Pepa Sapalai

Fa'ailo axial fa'ama'i pa'u ua mamanuina mo le sapalai o le ea, ae o ili centrifugal e fa'ao'o pa'u e fa'aaogaina mo fa'amoemoega fa'asu. O nei ili ua faʻapipiʻiina i faʻatinoga faʻamaonia-pa, faia ia talafeagai mo le faʻaaogaina i fale faʻapitoa faʻapitoa e manaʻomia ai ni faiga saogalemu. Ia galue lelei ma saogalemu i nei siosiomaga matautia, e tatau ona fa'apipi'i fa'atasi ma masini e fa'asao pa.

O lenei iloiloga mamanu e faʻamautinoa ai e mafai e tagata faʻapipiʻi ona taulimaina ea e mafai ona mu e aunoa ma se faʻalavelave faʻafefe.. E ala i le fa'amalieina o mana'oga fa'apitoa tau pisinisi, o nei tagata fiafia e tuʻuina atu fofo faʻalagolago ma saogalemu i le feʻaveaʻi o le ea, taua mo le fa'atumauina lelei uma fa'agaioiga ma tulaga saogalemu i si'osi'omaga ma mea pāpā kasa po o le pefu.