Usted buscó: blood thicker than water (Inglés - Suajili)

blood heavier than water
damu nzito kuliko maji

ash or soil may be more effective than water alone, but may be less effective than soap.
jivu au mchanga unaweza kufaa zaidi kuliko maji pekee lakini hauwezi kuwa na ufanisi kuliko sabuni.

soap lifts germs from the skin, and studies show that people tend to wash their hands more thoroughly when soap is used rather than water alone.
sabuni huondoa vijidudu kwenye ngozi, na tafiti zinaonyesha kwamba watu wana tabia ya kuosha mikono yao vyema zaidi wakitumia sabuni kuliko maji pekee.