Fautuaina kalisiu kalate. E faia i le maualuga maualuga kalisiu carbonate (papaʻamu) e pei o mea masani E ala i le kalini,
faʻalumaina, carbonation, sedimentation, filtration, mago ma tuʻimomomoina
gaosi ma avea. O oloa uiga o papaʻe maualuga, maualuga susulu, toniga tufatufaina o fasimea, vaapiapi
lapoa tufatufaina etc.