Simply just select the suitable nozzle and install it on the mainframe/pump and dip the nozzle into prep-cement, pull the handle backward to load the gun with cement.
Enostavno izberite ustrezno šobo, namestite jo na glavo brizgalke in potopite jo v pripravljen beton, ročico povlecite nazaj, da brizgo napolnite z betonom.