I just had one with the Movi-Prep last week and I started off with loose stools and went to all liquid by the 2nd or 3rd movement. I did probably have 10-15 liquids stools before it tapered off 2-3 hours after I did my dose.
I did the second dose and everything was liquid. I had probably 5-10 BM's in 1-2 hours and was done. I had to laugh because my BM's that round were all yellow liquid, the only solids that came through were 4 Asacols I had taken the morning before!! I guess they do stay in your system awhile!!