ʻO nā paipu he mau mea pono no nā hana kūkulu, a ʻo ka mea maʻamau ka hoʻohana ʻia ʻana o nā paipu wai, nā paipu hoʻoheheʻe, nā paipu kinoea, nā paipu hoʻomehana, nā uea uea, nā paipu wai ua, a me nā mea ʻē aʻe. ke kaʻina hana hoʻomohala o nā paipu hao maʻamau → paipu sima → paipu paʻa paʻa, paipu sima asbestos → paipu hao ductile, paipu kila galvanized → paipu plastik a me nā paipu alumini-plastic composite.

Loaʻa nā hoʻohana like ʻole o nā paipu, akā loaʻa iā lākou kahi ʻikepili maʻamau e pono e nānā ʻia - ke anawaena o waho, ʻo ia kekahi o nā kumu e ʻike ai inā kūpono nā paipu a ʻaʻole paha.Ua hoʻokomo kā mākou hale hana i nā mea ʻoihana e nānā i ka ʻikepili anawaena o waho o nā paipu kila i kēlā me kēia manawa e hōʻoia i ka maikaʻi o ka huahana.ʻO kā mākou hale hana kūikawā i ka hanaʻana i nā paipu kila, nā paipu kila maʻemaʻe, nā paipu kila galvanized, nā papa kila, nā scaffolds a me nā mea hoʻonani, nā paipu hale kōmaena, nā paipu i uhiʻia i ka waihoʻoluʻu, nā paipu pipi.