Hiki ke hoʻopau ʻia nā paipu kila ma muli o kāna noi. ʻO nā hoʻohana maʻamau o nā paipu kila ma kahi o nā paipu wai, nā laina wai ʻoihana, nā laina paipu aila, nā laina paipu cross country, ka mahiʻai a me nā paipu irrigation, nā laina paipu no ke kinoea maoli, nā ʻoihana kemika, nā ʻoihana kaʻa, nā ʻoihana kūkulu a me nā kumu ʻē aʻe.