Best pipe for indoor plumbing

ʻO ka paipu PVC ka koho e hiki mai ana o ka plumbing i loko, ʻo ke koho ʻana i ka mea paipu kūpono e pili pono i ka lōʻihi, kumu kūʻai, a me ka hana lōʻihi o ka ʻōnaehana.…