Imyenda idakoresha amazi ni imyenda isanzwe, cyangwa yaravuwe kugirango ibe, irwanya kwinjira mumazi no gutose.
Dufite inzira ebyiri zo kugera kumyenda itagira amazi.
Imwe ni umwenda wanduye amazi adafite amazi, undi ni umwenda utwikiriye, nka PU na PVC, PE nibindi