Yenziwe ngezinto ezisezingeni eliphezulu ze-HDPE, ihambisana nemvelo futhi inokuqina nokuqina okuphezulu, ukumelana okuqinile namandla angaphandle, akulula ukulimaza, kulula ukuyisebenzisa nokuphuzwayo, iqinile futhi ihlala isikhathi eside, futhi ingasetshenziswa isikhathi eside.