Ka cika wannan magana: An rubuta cewa an fara amfani da matatun yashi don a tsabtace ruwan da ake amfani da shi a shekara ta 1804, sa'ad da mai gidan wasa a Paisley, Scotland, John Gibb, ya yi amfani da matatun don gwaji, kuma ya sayar da abin da ya rage wa jama'a. Injiniya James Simpson ne ya kafa kamfanin samar da ruwa na Chelsea Waterworks Company a London a shekarar 1829. Ba da daɗewa ba aikin kula da ruwa ya zama na yau da kullun, kuma kyawawan halaye na tsarin sun bayyana a bayyane bayan binciken likitan John Snow a lokacin
1854 Broad Street cutar kwalara ta nuna rawar da samar da ruwa ke takawa wajen yada cutar kwalara.