I did my second flush last night. (I do Clarks flush) My first one being two weeks ago to the day. It was quite effortless. I passed about 30% more stones and larger ones this second time (about 300 today). I had only one serving of the ES yesterday at 630 pm. The second serving I had this morning at 730 am. I really dislike drinking it and just the two doses worked fine for me. I do eat two apples a day prior to the flush and drink fresh apple juice the day before and day of the flush.
I haven't had any nausea, pain, tiredness, etc that some others report. I even did 30 minutes of cardio today. still passing stones now. I plan to keep flushing every two weeks until I get them all out. It really is easy isn't it?