Aia i loko o kēia huahana kahi pāpale S60 screw, ʻelua hui cone inverted, kahi hui pagoda a me kahi kānana wai ʻōpala. He mea ohi ia i hoʻomohala ʻia no ka mālama ʻana i ka wai ʻōpala. Loaʻa iā ia ka hana sealing ikaika, hiki ke pale i ka evaporation solvent, a hoʻopaʻa i ka solvent. ʻO ka hana, hiki iā ia ke kānana i nā kinoea ʻino i ke kino kanaka a pale i ka palekana o nā limahana.