Molds clay plugs and inserts them into taphole to stop flow of metal, using rod, or builds clay-retaining wall over taphole. Breaks hole in crust of electrolytic bath, using crowbar.
Clamps siphon lid on crucible, and inserts other end of siphon into hole.
Attaches airhose to siphon, and turns valve to siphon molten metal into crucible. Lowers anode into bath, using pulley to maintain its position beneath bath surface.