Did anyone ever do a Sitzmarker test on clear liquids?

Hi,
I know this sounds weird, but I'm doing my 5-day Sitzmarker test on clear liquid diet with a bit of pureed veggy here and there. My surgeon said the colon contents still move along no matter what we eat. (I have outlet obstruction so doing Sitz with normal diet is unbearable; I get big urges to go and nothing comes out. 5 days of this and my rectum would break. Tried it already and the pain was too severe had to take an enema and invalidated whole test).

Am TIRED on clear and have 4 more days to go. Wondered if anyone else has tried this test on clear liquids?

esoR