Are you doing the straight MC? No psyllium & bentonite?
My thoughts on the salt water flush is if you really can't stand it for whatever reason...just to drop it. It doesn't sit well with some, while others find it no problem!
Drinking lots of water (on top of the lemonades) should help flush your system out. (drink warm water first thing in the morning to get the bowels moving) Also...if you add b&p's to your cleanse, that will take care of your bowels.