Le dama lokudada elenziwe ngokwezifiso lenziwe ngamava obuchwephesha kwiminyaka engaphezu kwama-20 kushishino lwedama lokudada, lihambelana ngokupheleleyo nemigangatho yokwakha idama lokudada lesizwe. Isakhelo sedama lonke samkela isakhiwo sentsimbi esichasene nokugqwala esishushu, esihlala ixesha elide, ukugqwala kunye nokumelana nokubola ukuze sisetyenziswe ngaphandle ixesha elide. Samkela indlela yokwakha eyenziwe ngaphambili efektri kunye neyokwakha kwindawo, sixhotyiswe nge-liner yedama lokudada lePVC elingangeni manzi elinomgangatho ophezulu kunye nokusebenza kakuhle kokulwa nokuvuza.