i get flex sigs. i did not have a total colectomy as a patient who has familial polyposis syndrome.
my prep is a small bottle of miralax 236 or 238 grams mixed in 64 oz of water (i dont drink electrolyte drinks of any kind, and im a diabetic type 2, so i dont do anything drink wise that will increase my blood sugar/glucose)
i have 6 to 8 inches of sigmoid in me and my jpouch is up top the anastomosis site not what is seen normally with a jpouch patient who has gone full an dtotal colectomy.
i have clear liquids from wake up through out the afternoon until about 430 pm the evening/day/pm prior to the early morning - next day flex sigmoidoscopy.
this works for me every time and ive never failed at my prep regimine, im always 100% cleaned out.
my scopes arent pouchoscopies since there is a simoid section of colon in me. on october 7th my gi in addition to my scheduled flex sig that morning completed an ileo-oscopy procedure on me as well.
i agree with ct and scott the gi doctors relay/dish out standard protocol instructions to patients that arent specific to the uncoloned/bowel resected and so the prep instructions given are often over kill instructions
good luck with your clean out/scope!
len