Ruwa na musamman daga ajiyar kuɗi mai ƙarancin shekaru miliyan 70. Asalin sa ɗan ƙaramin alkaline ne tare da pH na 7.4. A cewar kididdigar da aka yi, a cikin shekaru 65 ba a taɓa yin hulɗa da ilimin kimiyyar ƙasa ba. Ya dace da ƙaƙƙarfan ƙa'idodi don ruwan jarirai daga ƙasa zuwa sama. Ya ƙunshi silicic acid da ba kasafai ba. Yana da ƙananan ma'aunin COD.