once again the command to remove the two plugs is given by the head smelter now pull the mass can now flow in it takes 70 seconds for the 16 tons of molten metal to flood the mold and fill every cavity completely the head smelter closely monitors the entire process giving instructions to his colleagues controlling the casting ladles a little bit faster faster although speed is of the essence all movements have to take place simultaneously otherwise swirls could form in the funnels now after a good minute the job is done