help setting up flood hydro system

i want to make a flood system i having lighting getting rubbermaid containers water pumps and tubing on friday and i can't wait i want to get home and set it up immediatley. but dont know how to seperate container into upper and lower section or would it be easier to use two containers

....................................

sorry double post,

why not just do a deep water culture? im doing one right now, very easy. check my sig

with a deep water culture how efficient of a an air pump do i need, i got a 2800cc per minute air pump with dual exhaust