big betty, how did the miralax prep go? I used the ducolax and pico salax prep and I was on fluids for a day and a half. I feel the half day the next morning was a helpful reasurance that I was clean because I was still getting light and dark fluid stools the night before. After I drank the prep the next morning, it was obvious I was cleaned out good and stayed that way. I was not allowed fluids 3 hours prior to my colonoscopy, so I had to take the 2nd prep at 6 am. Hope everything went well for you.