SPOUTNIC

hi guys sorry for my English i m french the effect pot of my pod xt doesn t work anymore i Wonder if i use a flloorboard will solve the problem wich one would i use ????will i have the same use???or maybe via midi ???? with my computer keyboard?? is just in case i havent internet to use edit line 6 or maybe i replace de pot but i m looking for it i havent find any in France.... thx