ʻO ka wai inu wai wai wai (lpg) he hua'ōlelo e wehewehe ana i kahi pūʻulu o nā gadrocarbon gas i loaʻa mai i ka ailaʻaila a me keʻano kūlohelohe. Ua hanaʻiaʻo LPG e nā mea kūlohelohe maoli e pili ana i 55% a me nā mea hou aku a me keʻano o nā mea momonaʻaila e pili ana i 45%.