ʻO ke ana o ka pae mechanical he mea pono ia no nā pahu pahu wahie mana, e hāʻawi ana i ka heluhelu ʻike pono a pololei o nā pae wahie. Piʻi a hāʻule kona ʻano lana maʻalahi me ka wahie, e hōʻoia ana i nā ana pololei me ka ʻole o ka uila. He mea maikaʻi kēia ana no nā mea hana ma nā wahi mamao a paʻakikī paha kahi e pau ai nā ʻōnaehana uila. ʻO kāna hana paʻa ke kū i nā mea, a ʻo ke kaula 1 1/2' BSP e hiki ai ke hoʻokomo maʻalahi i ka hapa nui o nā pahu wahie, e hāʻawi ana i kahi hōʻike maopopo a me ka wikiwiki o nā pae wahie e pale ai i ka wā hoʻomaha.