Will a Krystal Clear Sand Pump and Saltwater System work for my pool?

[inhope]

Read the manual to the SWCG. It will have a parts diagram. If it shows a copper electrode, see if you can SAFELY unhook the wires inside the control box. MAKE SURE the unit is UNPLUGGED before opening the control unit or attempting to disconnect the copper electrode.

Pappy

What is the purpose in the electrode? Does it have anything to do with changing the salt to chlorine?