Kugenzura Umuringaikozwe mu muringa wahimbwe, nanone yitwa idasubira inyuma, yagenewe kugenzura imigendekere yimikorere ya sisitemu yo kugenzura amazi, ayo mazi ayobowe na disiki yimuka kandi itemba mu cyerekezo kimwe, ikoreshwa cyane mu kuvoma, kuvoma, no mu miyoboro.