I-191 ipakishwe kuzigubhu zensimbi ezinesisindo esingama-220kg futhi inesikhathi sokugcina esiyizinyanga eziyisithupha ku-20°C. Amazinga okushisa aphezulu azonciphisa isikhathi sokugcina.Londoloza endaweni epholile, engenamoya, ngaphandle kwelanga eliqondile futhi kude nemithombo yokushisa. Umkhiqizo uyavutha futhi kufanele ugcinwe kude namalangabi avulekile.