Hi NewMember12,
I have done several 3 and 5 day juice fast. I prefer them over long periods of fasting. Just done them more often.
There are several things that you need to consider.
First, before starting your fast you need to cleanse your bowels.
Second, during the 3 or 5 day fast you need to make sure that you have good BMs every day of the fast.
Third, make sure that drink a lot of water during the fast.
Forth, after the fast make sure that you have a clean diet.
Lots of luck with your flush.
Propaul