Yes same with me- liquid diet after lunch day before nothing and after Midnight. That and the other things I mentioned above should produce a clear Pouch for the test.
LaurieF there should be no need to do anything until lunchtime the day before. Sounds like you are prepping for a colonoscopy without a colon to examine. As I already mentioned most facilities have “one size fits all” generic instructions which may not necessarily apply to those without colons. The burden of communication rests on the J Pouch patient to ensure that the prescribed treatment fits.