Can i drink water after liver flush?

I did the Liver Flush where u have to drink 1/2 cup olive oil and 1/2 cup grapefruit at 10pm. I found the recipe on this site. Light breakfast and ligt lunch and no water after 7pm. I just wanna ask a simple question, can i drink water after i drink the grapefruit and olive oil after 10pm? Or i still cant until the next morning? Tweet