I-Concrete PolyLock, ebizwa nangokuthi i-E-lock noma i-polylock, eyenziwe nge-HDPE, emise okwe-E, ifaneleka ukubambelela kukhonkolo ngokuqinile. Iphonswa noma ishumekwe kukhonkolo emanzi uma usebenzisa, endaweni eveziwe yokushisela, i-geomembrane ingashiselwa kuyo kalula. Indawo ebushelelezi enobubanzi obungu-15cm noma u-10cm iyindawo yokushisela amashidi e-polyethylene kuyilapho iminwe yobude obungu-3-4cm isetshenziselwa ukufaka ukhonkolo wewebhu ukuze uvaleleke ngaphakathi futhi ulungise ukuhlangana nge-geomembrane ukwenza ibhange elingangenwa amanzi ngokuphelele.