As I discuss Colonscopies with people I'm hearing there are all sorts of ways to prep. I used Fleets Phospher-soda (sp?). It is very effective but about the most disgusting horrible stuff to gag down possible. The bottle recommends mixing 1/2 (a very small amount I think the whole bottle is just 3 oz) with a glass of soda or water. DON'T! Just gag down the stuff from the bottle. The quicker the better as once you start sipping the stuff, the gag reflex sets in and it gets very difficult.
I've also heard of the gallon jug of stuff. I can't imagine trying to drink down that much liquid although I can imagine it's to keep you from getting dehydrated. And lastly, there are pills which I am going to ask for next time. Just seems like the easiest way.
I've already posted this but I start early, in the am so I am all done by evening and can get a good night's sleep. Can't imagine waiting to the evening to prep and I sure wouldn't want to follow that person the next day during the procedure. Those are the folks that get the queue all backed up (pun intended) and the doctor is manually forced to clean the patient out in order to complete the procedure (can you imagine - how embarassing!).