ʻO ke kinikini pōpō pōleʻa he ʻano hou o ka valve i hoʻohana nui ʻia. ʻO ka loina hana o ke kinikini pōpō kila kila ka hoʻohuli ʻana i ke kumu valve i mea e pale ʻole ʻia ai ka pahu. He mea maʻalahi ka hoʻololi ʻana i nā kiwi pōpō kila kila, ka liʻiliʻi i ka nui, hiki ke hana ʻia i loko o nā anawaena nui, loaʻa i ka sila hilinaʻi, ka hana maʻalahi, a me ka mālama maʻalahi. ʻO ka ʻili hoʻopaʻa a me ka ʻili spherical i loko o kahi kūlana paʻa a ʻaʻole hiki ke hoʻopau ʻia e ka mea waena. Hoʻohana nui ʻia lākou i nā ʻoihana like ʻole.