1. Amapayipi okukhanya angaqhumi asebenzisa amashubhu ensimbi anomfutho ophansi.
2. Ukuxhumana kwamapayipi kufanele kusetshenziswe okukhethekile ukubeka phansi ama-clamps ane-crossover ye-4-square flexible wire.
3. Inani lezintambo ngaphakathi komsele akufanele lidlule 50% yendawo yonke ephambanayo yamakhondakta.