That is the perfect way to flush...especially the first time. Some people alter it as they get more experienced with the flushing.
I would add....make sure you drink LOTS of water the day before and up to 2pm on the day of the flush. The Epsom Salts are VERY dehydrating and this can make you feel not too good. Most people start drinking water right after the last ES the next day. It's fine to start eating after that last ES too.
tip* I mix my ES with organic apple juice. Tastes fine!