I know this is of interest and has come up before. I have perfected it.
Use the 4 qt. Klystra bag.
Take a rubber colon tube slightly larger than the opening at bottom of bag.
Find the smallest fountain pump, around .1 amp with a discharge "spout" which will attach to the end of the colon tube. Insert tube snugly into bag so that the end of the tube attached to the pump is in the very bottom of bag.
Attach to other end of tube which is hanging from the bag any extra tubing to give you the des...