ʻOi aku ka kiʻekiʻe o ke kūpaʻa ʻino o ke alahaka uila kila ma mua o ke alahaka kalapona maʻamau, a ua hoʻohana pinepine ʻia ke alahaka kuhili kila e kau i nā kaula i loko o ka ʻoihana petrochemical, ka hana meaʻai a me ka ʻoihana moku moku. E nui nō hoʻi nā ʻano o nā alahaka kuhili ʻole, i hoʻokaʻawale ʻia e like me ke ʻano: alahaka kuhili ʻole, alahaka kila kuhili ʻole, alahaka kila kuhili ʻole. Inā hoʻokaʻawale ʻia e nā mea (kū'ē i ka corrosion mai haʻahaʻa a kiʻekiʻe): 201 kila kila, 304 kila kila, 316L kila kila.
Eia kekahi, ʻoi aku ka maikaʻi o ke alahaka kuhili ʻole ma mua o ke ʻano o ka pā a me ke ʻano pā, e lawe mau ana i nā kaula anawaena nui, i hui pū ʻia me nā mea maikaʻi o ke kila kila, e hoʻomaikaʻi nui i ke alahaka alapiʻi i kona loaʻa. ʻO ke alahaka kila kila i hana nui ʻia me ke kila, ke alumini alumini a me ke kila kila. I ke kūkulu ʻana i ke alahaka kila kila, pono mākou e hoʻoholo i ke kuhikuhi e hōʻoia i hiki ke maʻalahi ka mālama ʻana i kēlā me kēia mea hana, e pale aku i ka hemahema a me ka mālama ʻana, e hōʻeha nui ai.
Pono ka mea kūʻai aku e hoʻomaopopo i ka mea hana i ka papa o ka pā kila kila e hoʻohana ai i ka manawa o ka nīnau, a hoʻomaopopo i nā koi o ka mānoanoa pā, a me nā mea ʻē aʻe, i hiki ke kūʻai ʻia ka huahana e like me nā koi.