How Much Water Should You Drink To Clear Your System Of Cocaine?

NONE! The only thing that can get rid of the cocaine in your system is MORE COCAINE , do not eat or drink anything just continue to use cocaine; the new cocaine will cancel out the old cocaine and then your system will be free of cocaine.  I am kidding of course, however, my ridiculous answer is as ridiculous as your ridiculous question; the answer to which of course is: One eight ounce glass.  Sorry, again I jest, the answer actually depends on why you want to "clear" your system. So I must answer your question with a question; Why do you want to know?