brass balls achivement in bioshock

where is the option to turn vita chambers off

i can not find it

and if i don't turn them off does that mean i can not get the achievement?

no you just have to save your game like evry 2 seconds and when you die just go back to a previous save. IDK if this works any more but if you go through the game on easy you change the difficulty to hard once you go up the elavator to fight Atlas and you will get the acheivement. Does not work for everyone though.

Save your progress often.