Originally Posted By: massacre
I guess that's natures back door backup filter. Although I'm wondering about how salty the water can be... I assume full strength saltwater is still going to be trouble.


IIRC, most water absorption in the colon is pretty independent of salt content. Most ions and what-not are absorbed fairly early in the small intestine. The rectum is purely fecal storage, so you'd need to get the fluids up at least 10 inches or so (NO, you don't have to push a tube in 10 inches....)