There is sludge that stays in your intestines for months or years.
It's not chunks of stuff, more like a coating of nasty shit.
It did tighten up my coastline. Maybe I was just an extreme case though.
You are retarded, period. No "sludge" stays in your intestines for months or years. Read a medical book jackass. As with any hollow viscus organ there is mucous that in the case of the large intestine is secreted from goblet cells from the lumen of bowel wall and if it wasn't there, your shit wouldn't travel through the colon as well.
A tap water enema or whatever else they are putting in it will do absolutely nothing for your health. Yes it will make you shit a lot of watery diarrhea stool, and potentially dehydrate you... but it's not going to make you live longer or whatever other BS you bought into to even consider having it done lol