Hoʻohana ʻia ka huahana no ka hoʻopau ʻana a i ʻole ke pani ʻana i ke kahe o ke kinoea ʻino a i ʻole ka ʻino ʻole, nā wai a me ka hapa wai.

Hoʻohana nui ʻia nā kiwikā puka i ka wai piula wai, ka wai ʻauʻau, ke kūkulu ʻana, ka ʻaila, ka ʻoihana kemika, ka meaʻai, ka lāʻau lapaʻau, ka lole, ka mana, ka moku, ka metallurgy

ʻO ka valve hōʻoia he ʻano valve nona nā ʻāpana wehe a me ka pani ʻana he disc valve poepoe, hiki ke ālai i ke kahe hope o ka medium ma o kona kaumaha ponoʻī a me ke kaomi waena

Hoʻohana nui ʻia ka valve i ka hoʻokele kūlanakauhale, ka mālama wai, ka mālama ʻana i ka wai ʻino a pēlā aku

Hoʻohana ʻia ia i loko o ka ʻōnaehana paipu waena kinoea o nā ʻoihana ʻoihana a me nā ʻoihana mining, ka hoʻokele kūlanakauhale, ka palekana o ke kaiapuni a me nā ʻoihana ʻē aʻe, kūpono loa no ka ʻoki loa ʻana i nā kinoea ʻawahia, ʻino a me nā mea hiki ke puhi.

He kūpono ka damper ea no ke kinoea flue, ke kinoea lepo, a pēlā aku.