He kuleana koʻikoʻi ka mea hoʻohui wai ʻole ma ke ʻano he mea uila e hoʻopili ana i ka hopena o ka mana a me ka pau ʻana o ke koi.No kēia kumu, i ke koho ʻana i nā ʻāpana uila haʻahaʻa haʻahaʻa no nā kaʻa kaʻa, pono e koho i ka mea maikaʻi loa mai nā ʻano o ke kaiapuni, ka mahana, ka haʻahaʻa, ka hoʻonohonoho ʻana o nā mea hana, vibration, dustproof, waterproof, noise, sealing, etc.
Hoʻohui ʻia ka mea hoʻohui wai i ʻelua mau sub-hui, kahi hopena kāne a me kahi hopena wahine.ʻO ka hopena wahine he kino makuahine, kahi laka lua (terminal), kahi apo hoʻopaʻa, kahi pahu, kahi apo hoʻopaʻa hope, kahi uhi a me nā ʻāpana ʻē aʻe.Ma muli o nā hanana like ʻole, e loaʻa nā ʻokoʻa o kēlā me kēia kanaka i nā ʻāpana kikoʻī, akā ʻaʻole nui nā ʻokoʻa a hiki ke mālama ʻole ʻia.
Hoʻokaʻawale ʻia ka mea hoʻohui wai like i nā pālule lōʻihi a me nā pā pōkole.